information sources on forecasting methods

1.Research: Research at least six (6) information sources on forecasting methods; take notes and record and interpret significant facts, meaningful graphics, accurate sounds and evaluated alternative points of view. 2.Preparation: Produce as storyboard with thumbnails of at least ten (10) slides. Include the following elements: ◦Title of slide, text, background color, placement & size of graphic, fonts - color, size, type for text and headings ◦Hyperlinks (list URLs of any site linked from the slide), narration text, and audio files (if any) ◦Number on slides clear ◦Logical sequence to the presentation 3.Content: Provide written content with the following elements: ◦introduction that presents the overall topic (clear sense of the project's main idea) and draws the audience into the presentation with compelling questions or by relating to the audience's interests or goals. ◦accurate, current ◦clear, concise, and shows logical progression of ideas and supporting information ◦motivating questions and advanced organizers ◦drawn mainly from primary sources 4.Text Elements: Slides should have the following characteristics: ◦fonts are easy-to-read; point size that varies appropriately for headings and text ◦italics, bold, and indentations enhance readability ◦background and colors enhance the readability of text ◦appropriate in length for the target audience; to the point 5.Layout: The layout should have the following characteristics: ◦visually pleasing ◦contributes to the overall message ◦appropriate use of headings, subheadings and white space 6.Media: The graphics, sound, and/or animation should ◦assist in presenting an overall theme and enhance understanding of concept, ideas and relationships ◦have original images that are created using proper size and resolution; enhance the content ◦have a consistent visual theme. 7.Citations: The sources of information should: ◦properly cited so that the audience can determine the credibility and authority of the information presented ◦be properly formatted according to APA style


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research six sources on forecasting methods



MAT 540 Assignment 2
Assignment #2: Internet Field Trip
  1. Research: Research at least six (6) information sources on forecasting methods; take notes and record and interpret significant facts, meaningful graphics, accurate sounds and evaluated alternative points of view.
  2. Preparation: Produce as storyboard with thumbnails of at least ten (10) slides. Include the following elements:
    • Title of slide, text, background color, placement & size of graphic, fonts - color, size, type for text and headings
    • Hyperlinks (list URLs of any site linked from the slide), narration text, and audio files (if any)
    • Number on slides clear
    • Logical sequence to the presentation
  3. Content: Provide written content with the following elements:
    • Introduction that presents the overall topic (clear sense of the project's main idea) and draws the audience into the presentation with compelling questions or by relating to the audience's interests or goals.
    • accurate, current
    • clear, concise, and shows logical progression of ideas and supporting information
    • motivating questions and advanced organizers
    • drawn mainly from primary sources
  4. Text Elements: Slides should have the following characteristics:
    • fonts are easy-to-read; point size that varies appropriately for headings and text
    • italics, bold, and indentations enhance readability
    • background and colors enhance the readability of text
    • appropriate in length for the target audience; to the point
  5. Layout: The layout should have the following characteristics:
    • visually pleasing
    • contributes to the overall message
    • appropriate use of headings, subheadings and white space
  6. Media: The graphics, sound, and/or animation should
    • assist in presenting an overall theme and enhance understanding of concept, ideas and relationships
    • have original images that are created using proper size and resolution; enhance the content
    • Have a consistent visual theme.
  7. Citations: The sources of information should:
    • properly cited so that the audience can determine the credibility and authority of the information presented
    • be properly formatted according to APA style

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The Thompson Corporation projects an increase in sales from

The Thompson Corporation projects an increase in sales from $18 million to $25 million, but it needs an additional $500,000 of current assets to support this expansion. Thompson purchases under terms of 2/10, net 60 and currently pays on the 10th day, taking discounts. The CFO is considering using trade credit to finance the additional working capital required. Alternatively, Thompson can finance its expansion with a one-year loan from its bank. The bank has quoted the following alternative loan terms: [30 points] a) 12 percent rate on a simple interest loan, with monthly interest payments. b) 10 percent annual rate on a discount interest basis with no compensating balance. c) 8.75 percent annual rate on a discount interest basis, with a 10 percent compensating balance. d) 8 percent add-on interest, with monthly payments. Based strictly on cost considerations only, what should Thompson do to finance its expansion?

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Southwind Camper Co. has as its primary goal

1  The Southwind Camper Co. has as its primary goal to sell 10,000 camper trailers each year. From this type of objective, you can conclude that the company:
A. has a marketing orientation.
B. does not adhere to the marketing concept.
C. has determined to satisfy existing customer needs.
D. wants to use a product development strategy. 
2    The implementation of the marketing concept in a company should produce company-wide managerial:
A. appreciation of the consumer's role as it is related to the firm's existence, growth, and stability.
B. effort based on participation and interaction of company officers in establishing corporate and departmental goals.
C. concern with the effect of new products on the firm's present and future profit position.
D. attentiveness to all of the above.
3    Strategic planning:
A. includes all the activities that lead to the development of a clear organizational mission, organizational objectives, and appropriate strategies to achieve those objectives.
B. should emphasize current cash flows, market share gains, and earning trends.
C. cannot be used to prepare for inevitable changes in the market environment.
D. should be developed by and be the sole responsibility of the organization's top managers. 
4    During the 1940s, Odorono was a very popular, widely advertised antiperspirant. The product was manufactured by the Odorono Company in New York City. The product came in liquid and solid form and eliminated perspiration on hands, feet, forehead, and under arms. The most likely reason why this company no longer exists is:
A. its lack of customer orientation.
B. a poorly chosen name.
C. its failure to modify its strategy to reflect the changing environment.
D. a poor use of the promotional mix. 
5    Imagine a chain of steak restaurants that had as its mission statement to provide its customers with the world's best steaks. Changes in consumer tastes resulted in fewer customers for the steakhouses. In Rationale to decreased demand, the restaurant over a period of time added chicken, vegetarian lasagna, seafood, and pizzas to its menu. Now, the chain of restaurants can best be described as a(n):
A. organization that adheres to a production orientation.
B. organization without any strategy.
C. drifting organization.
D. organization that adheres to a selling orientation. 
6    Which of the following statements about a mission statement is true?
A. Even though no one denies the importance of the mission statement, it is the least used of all of the management tools.
B. An effective mission statement takes an internal organizational focus.
C. A generalized mission statement is more effective than one that is specific because it allows the organization to respond quickly to a changing environment.
D. It is not uncommon for an organization to spend one to two years developing a useful mission statement. 
7    Slatescape is a relatively new company that mines and crushes slate for use as mulch in gardens. In order to __________, the managers of the company reviewed the historical records of the mine from which it is getting the slate. Its managers also determined that slate is available in only a few areas of the world. In addition, the managers examined its acceptance within the community, federal regulations, which affect its operation, and its existing and potential competitors.
A. develop a mission statement
B. distinguish between primary and secondary objectives
C. develop an effective marketing mix
D. evaluate its marketing plan 
8    Belinda Nunez wants to open a gallery in which she will feature young Hispanic artists. She was unsure if the new business would succeed until she read in the local newspaper that 55 percent of the community in which she will be operating the gallery is Hispanic. Which of the following statements could describe this situation?
A. Nunez needs to realize that even the most carefully conducted research can be fraught with errors.
B. Nunez needs some primary marketing research before she invests her money and time in this project.
C. Nunez should make the decision to open the gallery based on her own experiences in the community-and not on marketing research alone.
D. All of the above statements can be used to describe this situation. 
9    Which of the following statements about marketing research is true?
A. Marketing research proves the old adage, "You get what you pay for."
B. Many marketing managers view marketing research as the final answer to their problems.
C. You don't need intuition or experience when you have marketing research.
D. Good marketing research considers all the factors that could influence the success of a marketing strategy. 
10    Reading of Toledo, Inc., makes a streaked griddle that produces char-broiled looking meat without the grease flare-ups, the smoke, or the wasted energy. Sales have been down recently for its streaked griddle. Its marketing manager wonders if the sales decrease is due to consumer health concerns that grilled meat causes cancer. The manager wants to do marketing research to see if the firm needs to modify the product or do more consumer advertising. The marketing manager:
A. is in the first stage of the market research process.
B. must realize this is a channel issue.
C. will have to rely solely on secondary data.
D. will next need to determine how the gathered data will be processed. 
11    The Five Ps of the research process are the purpose of the research, the plan of the research, the performance of the research, the processing of the research, and the:
A. preparation of the research.
B. predictability of the research.
C. promotion of the research results.
D. propagation of the research. 
12    By the end of the first stage of the marketing research process, managers and researchers should agree on:
A. whether the company will do its own research or hire a marketing research specialist.
B. whether primary or secondary data will be used.
C. the specific question or questions the research is designed to investigate.
D. the type of quantitative research to be conducted. 
13    A research plan:
A. explains the methodology, but does not justify its use.
B. is influenced by whether primary or secondary data are to be gathered.
C. is unaffected by who conducts the research.
D. is created as part of the research processing stage. 
14    When the television show ER ran its final episode for the 2001-2002 season, it showed two smallpox victims and the subsequent quarantine of everyone who had been exposed to the smallpox. The day prior to the airing of the television show, the Center for Disease Control and Prevention released survey information stating that most Americans do not realize that naturally occurring smallpox has been eradicated from the world. The center's research report is an example of:
A. quantitative primary data.
B. data mining.
C. secondary data.
D. research intended for internal marketing purposes. 
15    In terms of consumption decisions, middle class consumers prefer to:
A. buy at a market that sells at a wholesale rates.
B. buy what is popular.
C. buy only the brands which sell at affordable prices.
D. analyze the market and select the best at the lowest prices. 
16    Which of the following statements about culture is true?
A. In today's society, family is the key source of culture.
B. Educational institutions do not play a role in transmitting culture.
C. One's culture is based on one's wealth, skill, and power.
D. None of the above statements about culture is true. 
17    One of the reasons for the popularity of the Survivor television series is the interaction of urban vs. rural dwellers, baby boomers vs. Gen Xers, and devout Christians vs. agnostics. In other words, the producers of the shows select a variety of:
A. subcultures.
B. social classes.
C. aspirational groups.
D. cultures. 
18    Which of the following is an example of a social influence on consumer behavior?
A. The fashion editor of Seventeen magazine writes that any teen who wants to be well-dressed for the first day of school must wear a shirt that shows her bellybutton.
B. The manufacturers of a line of aromatherapy candles markets them at very exclusive stores.
C. When Arne went to the store to buy a new dress for Easter, she decided not to buy anything because of the crowded conditions of the store.
D. Billie purchased a pair of Honey brand clogs instead of the Birkenstocks she wanted because the Birkenstocks were too expensive. 
19    Which of the following is the most valuable piece of information for determining the social class of your best friend's parents.
A. How many years of schooling did they have?
B. What is their ethnic background?
C. What is their combined annual income?
D. What are their occupations? 
20    Which of the following statements about social classes in the United States is true?
A. The middle class is the largest class.
B. Less than five percent of the population in the U.S. belongs to the upper class.
C. The working class is defined as "family folk" who depend heavily on relatives for economic and emotional support.
D. The middle class is the group most likely to demand instant gratification.


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The best spinner requirements

I am quite sure you have probably read The Best Spinner review but still are unsure about the the best spinner requirements to run it.  The Best Spinner runs fine on some computer while it does not load on few. Everytime it didn't run on my computer was mainly because .NET framework was not installed on the computer. Here is all the the best spinner requirements to run it. Microsoft .NET framework as a  The Best Spinner.  requirement
      1) Microsoft .NET Framework Version 2.0 Redistributable Package : click HERE
      2) .Net2 needed to run The Best Spinner : click HERE
      3) .Net needed for a 64 bit machine (If you ar running a 64Wbit system, try installing Microsoft .NET Framework 3.5 SP1) : click HERE 
  Here is the PDF file with details regarding The Best Spinner requirements : click HERE 
After making sure you have .NET Framework installed on your computer. Also download below optional required Microsoft software in case (use google :) ):
x  Hotfix for Microsoft .NET Framework 3.5 SP1 (KB958484)
x  Update for Microsoft .NET Framework 3.5 SP1 (KB963707)
x  Hotfix for Microsoft .NET Framework 3.5 SP1 (KB953595)

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The best spinner system requirements


I have used the The Best Spinner software and it works fine on some computer while it fails to load on few. It took me quite some time to figure it out that this mainly happens due to absence of .NET framework installed on the computer. I will list down all the Microsoft .NET framework system requirement to run The Best Spinner.
      1) Microsoft .NET Framework Version 2.0 Redistributable Package : click HERE
      2) .Net2 needed to run The Best Spinner : click HERE
      3) .Net needed for a 64 bit machine (If you ar running a 64Wbit system, try installing Microsoft .NET Framework 3.5 SP1) : click HERE 
Incase you are looking for details regarding The Best Spinner system requirements : click HERE 
After making sure you have .NET Framework installed on your computer. Also download below optional required small Microsoft software in case (use google :) ):
x  Hotfix for Microsoft .NET Framework 3.5 SP1 (KB958484)
x  Update for Microsoft .NET Framework 3.5 SP1 (KB963707)
x  Hotfix for Microsoft .NET Framework 3.5 SP1 (KB953595)

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Which of the following tests could detect some nonlinear relationships between two variables

Which of the following tests could detect some nonlinear relationships between two variables?
a rank correlation test
b Wilcoxon signed-ranks test
c sign test
d Wilcoxon rank-sum test


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Which of the following distribution-free tests has no parametric counterpart

Which of the following distribution-free tests has no parametric counterpart?
a rank correlation test
b sign test
c runs test
d Kruskal-Wallis test

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The weights of randomly selected quarters that were minted after 1964 are given below

The weights of randomly selected quarters that were minted after 1964 are given below. The quarters are supposed to have a median weight of 5.680g. Use the Wilcoxon signed-ranks test and a 0.01 significance level to test the claim that the median is equal to 5.680g. Do quarters appear to be minted according to specifications?
Post-1964 Quarters
5.7027 5.6234 5.5591 5.5636
5.7495 5.5928 5.5864 5.6485
5.7050 5.6486 5.6872 5.6703
5.5941 5.6661 5.6274 5.6848
5.7247 5.5361 5.6157 5.5609
5.6114 5.5491 5.6668 5.7344
5.6160 5.7239 5.7198 5.6449
5.5999 5.6555 5.6694 5.5804
5.7790 5.6063 5.5454 5.6010
5.6841 5.5709 5.6646 5.6022
a Fail to reject H0. There is sufficient evidence to warrant rejection of the claim that the memdian is 5.680. The quarters do not appear to be minted according to specifications.
 b Reject H0. There is sufficient evidence to warrant rejection of the claim that the memdian is 5.680. The quarters do not appear to be minted according to specifications.
c Reject H0. There is insufficient evidence to warrant rejection of the claim that the memdian is 5.680. The quarters do not appear to be minted according to specifications.
d Fail to reject H0. There is insufficient evidence to warrant rejection of the claim that the memdian is 5.680. The quarters do not appear to be minted according to specifications.


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Researchers collected data on the number of hospital admissions resulting from motor vehicle crashes, and results are given for Friday the 6th and Friday the 13th in the same month

Researchers collected data on the number of hospital admissions resulting from motor vehicle crashes, and results are given for Friday the 6th and Friday the 13th in the same month. Use the Wilcoxon signed-ranks test to test the claim that the matched pairs have differences that come from a population with median equal to zero at a significance level of a=0.1.
Friday 6th Friday 13th
9 10
8 9
7 12
13 6
11 6
6 12
17. Can the null hypothesis be rejected? Why?
a Yes, because the test statistic is greater than the critical value.
b Yes, because the test statistic is less than or equal to the critical value.
c No, because the test statistic is less than or equal to the critical value.
d No, because the test statistic is greater than the critical value.

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The same sample data are used for the sign test and for the Wilcoxon signed-ranks test, but different conclusions result

The same sample data are used for the sign test and for the Wilcoxon signed-ranks test, but different conclusions result. Which conclusion is likely to be better?
a The sign test
b The Wilcoxon signed-ranks test
c Both tests
d Neither test

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The data is the accompanying table give the weights (in g) of randomly selected quarters that were minted after 1964

The data is the accompanying table give the weights (in g) of randomly selected quarters that were minted after 1964. The quarters are supposed to have a median weight of 5.670g. Use the sign test and a 0.01 significance level to test the claim that the median is equal to 5.670g.
Post-1964 Quarters
5.7321 5.6652 5.5635 5.6746
5.5834 5.6968 5.5509 5.5772
5.5976 5.7233 5.6592 5.7455
5.7176 5.6642 5.6774 5.5575
5.6885 5.6823 5.7330 5.7228
5.7099 5.6669 5.6385 5.6141
5.6293 5.7447 5.5336 5.6408
5.5995 5.6436 5.6374 5.5646
5.6701 5.5803 5.6596 5.7023
5.7149 5.5809 5.5749 5.6636
a Since the test statistic does fall within the critical region, fail to reject H0.
b Since the test statistic does fall within the critical region, reject H0.
c Since the test statistic does not fall within the critical region, fail to reject H0.
d Since the test statistic does not fall within the critical region, reject H0.

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An institute conducted a clinical trial of its methods for gender selection

An institute conducted a clinical trial of its methods for gender selection. The results showed that 275 of 330 babies born to parents using a specific gender-selection method were boys. Use the sign test and a 0.05 significance level to test the claim that the method used is effective in increasing the likelihood of a boy.
a Since the test statistic falls within the critical region, reject the null hypothesis. There is sufficient evidence that the method used is effective in increasing the likelihood of a boy.
b Since the test statistic does not fall within the critical region, fail to reject the null hypothesis. There is insufficient evidence that the method used is effective in increasing the likelihood of a boy.
c Since the test statistic falls within the critical region, fail to reject the null hypothesis. There is sufficient evidence that the method used is effective in increasing the likelihood of a boy.
d Since the test statistic does not fall within the critical region, reject the null hypothesis. There is insufficient evidence that the method used is effective in increasing the likelihood of a boy.

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Use a 0.05 significance level to test the claim that when the 13th of the month falls on a Friday


Use a 0.05 significance level to test the claim that when the 13th of the month falls on a Friday, the number of storms is not affected.
A random Friday Friday the 13th
12 9
15 21
12 13
8 7
2 3
6 8
Should we reject the null hypothesis that when the 13th of the month is on a Friday, the number of storms is not affected at a significance level of a=0.05?
a No, because the test statistic is less than or equal to the critical value.
b No, because the test statistic is greater than the critical value.
c Yes, because the test statistic is greater than the critical value.
d Yes, because the test statistic is less than or equal to the critical value.

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Assume that matched pairs of data result

Assume that matched pairs of data result in the given the number of signs when the second variable is subtracted from the corresponding value of the first variable. Use the sign test with a 0.05 significance to test the null hypothesis of no difference.
Positive signs: 15; negative signs: 7; ties: 1
a Yes, because the test statistic is greater than the critical value.
b No, because the test statistic is greater than the critical value.
c Yes, because the test statistic is less than or equal to the critical value.
d No, because the test statistic is less than or equal to the critical value.

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Fill in the missing entries in the following partially completed one-way ANOVA table

Fill in the missing entries in the following partially completed one-way ANOVA table.
a Source df SS MS=SS/df F-statistic
 Treatment 3 11.16
Error 13.72 0.686
Total
b Source df SS MS=SS/df F-statistic
 Treatment 3 22.97 7.66 11.16
Error 20 13.72 0.686
Total 23 36.69
c Source df SS MS=SS/df F-statistic
Treatment 3 2.55 7.66 11.16
Error 20 13.72 0.686
Total 23 16.27
d Source df SS MS=SS/df F-statistic
Treatment 3 0.184 0.061 11.16
Error 20 13.72 0.686
Total 23 13.90
e Source df SS MS=SS/df F-statistic
d Treatment 3 48.80 16.27 11.16
Error 20 13.72 0.686
Total 23 62.52


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The following table shows the two-way ANOVA output for SAT scores. Assuming no interaction between gender and type of test

The following table shows the two-way ANOVA output for SAT scores. Assuming no interaction between gender and type of test (verbal/match), is there sufficient evidence to support the claim that gender has an effect on SAT scores?
Source DF SS MS F P
Gender 1 64094 64093.6 6.39 0.016
Verb/match 1 5818 5817.6 0.58 0.452
Interaction 1 31295 31294.5 3.12 0.086
Error 36 361091 10030.3
Total 39 462298
 Is there any evidence that gender has an effect? (Assume a 0.05 significance level.)
a Since the P-value for gender is small, there is no evidence to support the claim.
b Since the P-value for gender is large, there is no evidence to support the claim.
c Since the P-value for gender is small, there is evidence to support the claim.
d Since the P-value for gender is large, there is evidence to support the claim.

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The following table shows the two-way ANOVA output for the weights of poplar trees

The following table shows the two-way ANOVA output for the weights of poplar trees. Test the hypothesis that the weights of poplar trees are not affected by an interaction between site and treatment.
Source DF SS MF F P
Site 3 2.4776 0.825876 3.11 0.037
Treatment 1 0.3718 0.371777 1.40 0.243
Interaction 3 2.6768 0.892265 3.36 0.028
Error 40 10.6222 0.265555
Total 47 16.1484
Is there evidence to support the claim of interaction? (Assume a 0.05 significance level.)
a Since thee P-value for interaction is large, there is evidence of interaction.
b Since the P-value for interaction is small, there is no evidence of interaction.
c Since the P-value for interaction is large, there is no evidence of interaction.
d Since the P-value for interaction is small, there is evidence of interaction.

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Refer to data table below, which shows the amounts of nicotine (mg per cigarette) in king size, 100mm menthol, and 100mm nonmenthol cigarettes

Refer to data table below, which shows the amounts of nicotine (mg per cigarette) in king size, 100mm menthol, and 100mm nonmenthol cigarettes. The king size cigarettes are nonfiltered, while the 100mm menthol and the 100mm nonmenthol cigarettes are filtered. Use a 0.05 significance level ot test the claim that three categories of cigarettes yield the same mean amount of nicotine. Given that only the king size cigarettes are not filtered, do the filters appear to make a difference?
King Size Menthol Filtered 100mm Nonmenthold
Brand Nicotine Brand Nicotine Brand Nicotine
1 1.6 1 1.1 1 0.7
2 1.0 2 0.9 2 1.1
3 1.0 3 1.1 3 0.5
4 1.1 4 0.8 4 1.1
5 1.5 5 1.2 5 1.1
6 1.3 6 1.4 6 0.8
7 1.2 7 1.0 7 1.1
8 1.0 8 1.2 8 1.2
9 1.2 9 1.4 9 0.8
10 1.1 10 0.9 10 1.0
Do the filters appear to make a difference?
a The results are inconclusive because the king size cigarettes are a different size than the filtered cigarettes.
b No, the filters do not appear to make a difference because there is insufficient evidence to warrant the rejection of the claim.
c No, the filters do not appear to make a difference because there is sufficient evidence to warrant the rejection of the claim.
d Given that the king size cigarettes have the largest mean, it appears that the filters do make a difference (although this conclusion is not justified by the results from analysis of variance).


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The data was obtained from car crash experiments. The table values are the chest deceleration data (g) for the dummy in the driver's seat

The data was obtained from car crash experiments. The table values are the chest deceleration data (g) for the dummy in the driver's seat. Use a 0.05 significance level to test the null hypothesis that the different weight categories have the same mean. Do the data suggest that larger cars are safer?
Subcompact Compact Midsize Full-size
59 53 55 44
59 55 47 45
58 46 50 42
55 46 54 42
59 51 53 53
a The results of an ANOVA test are insufficient to make such a claim.
b No, because the null hypothesis is not rejected.
c Yes, because the null hypothesis is rejected.
d Yes, because the null hypothesis is not rejected.


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If we use the amounts (in millions of dollars) grossed by movies in categories with PG, PG-13, and R ratings, we obtain the SPSS analysis of variance results shown below

If we use the amounts (in millions of dollars) grossed by movies in categories with PG, PG-13, and R ratings, we obtain the SPSS analysis of variance results shown below. Use a 0.05 significance level to test the claim that PG movies, PG-13 movies, and R movies have the same mean gross amount.
Gross Sum of Squares df Mean Square F Sig Between Groups 59110.874 2 29555.437 3.705 .035
Within Groups 271224.0 34 7977.176 Total 330334.9 36
What is the conclusion for this hypothesis test?
a Fail to reject H0. There is insufficient evidence to warrant the rejection of the claim that PG movies, PG-13 movies, and R movies have the same mean gross amount.
b Fail to reject H0. There is sufficient evidence to warrant the rejection of the claim that PG movies, PG-13 movies, and R movies have the same mean gross amount.
c Reject H0. There is sufficient evidence to warrant the rejection of the claim that PG movies, PG-13 movies, and R movies have the same mean gross amount.
d Reject H0. There is insufficient evidence to warrant the rejection of the claim that PG movies, PG-13 movies, and R movies have the same mean gross amount.

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Given below are the anlysis of variance results from a Minitab display. Assume that you want to use a 0.05 significance level in testing the null hypothesis that the different samples come from populations with the same mean.

Given below are the anlysis of variance results from a Minitab display. Assume that you want to use a 0.05 significance level in testing the null hypothesis that the different samples come from populations with the same mean.
What can you conclude about the equality of the population means?
Source DF SS MS F p Factor 3 30 10.00 1.6 0.264 Error 8 50 6.25 Total 11 80
a Reject the null hypothesis since the p-value is greater than the significance level.
b Accept the null hypothesis since the p-value is greater than the significance level.
c Reject the null hypothesis since the p-value is less than the significance level.
d Accept the null hypothesis since the p-value is less than the significance level.

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Given below are the analysis of variance results from a Minitab display

Given below are the analysis of variance results from a Minitab display. Assume that you want to use a 0.05 significance level in testing the null hypothesis that the different samples come from populations with the same mean.
Identify the value of the test statistic.
Source DF SS MS F p Factor 3 30 10.00 1.6 0.264 Error 8 50 6.25 Total 11 80
a 10.00
b 1.6
c 0.264
d 30


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Samples of pages were randomly selected form three different novels. The Flesch Reading Ease scores were obtained from each page, and the TI-83/84 Plus calculator results from analysis of variance are given below

1. Samples of pages were randomly selected form three different novels. The Flesch Reading Ease scores were obtained from each page, and the TI-83/84 Plus calculator results from analysis of variance are given below. Use a 0.01 significance level to test the claim that the three books have the same mean Flesch Reading Ease score.
One-way ANOVA
F=2.2239835933 p=0.1246311696 Factor df=2 SS=317.802408 Down MS=158.901204
One-way ANOVA
UP MS=158.901204  Error df=32 SS=2286.36512 MS=71.4489101 Sxp=8.45274571
What is the conclusion for this hypothesis test?
a Reject H0. There is insufficient evidence to warrant the rejection of the claim that the three books  have the same mean Flesch Reading Ease score.
b Fail to reject H0. There is sufficient evidence to warrant the rejection of the claim that three books have the same mean Flesch Reading Ease score.
c Fail to reject H0. There is insufficient evidence to warrant the rejection of the claim that three books have the same mean Flesch Reading Ease score.
d Reject H0. There is sufficient evidence to warrant the rejection of the claim that the three books have the same mean Flesch Reading Ease score.

 

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Samples of pages were randomly selected form three different novels

1. Samples of pages were randomly selected form three different novels. The Flesch Reading Ease scores were obtained from each page, and the TI-83/84 Plus calculator results from analysis of variance are given below. Use a 0.01 significance level to test the claim that the three books have the same mean Flesch Reading Ease score.
One-way ANOVA
F=2.2239835933 p=0.1246311696 Factor df=2 SS=317.802408 Down MS=158.901204
One-way ANOVA
UP MS=158.901204  Error df=32 SS=2286.36512 MS=71.4489101 Sxp=8.45274571
What is the conclusion for this hypothesis test?
a Reject H0. There is insufficient evidence to warrant the rejection of the claim that the three books  have the same mean Flesch Reading Ease score.
b Fail to reject H0. There is sufficient evidence to warrant the rejection of the claim that three books have the same mean Flesch Reading Ease score.
c Fail to reject H0. There is insufficient evidence to warrant the rejection of the claim that three books have the same mean Flesch Reading Ease score.
d Reject H0. There is sufficient evidence to warrant the rejection of the claim that the three books have the same mean Flesch Reading Ease score.

2. Given below are the analysis of variance results from a Minitab display. Assume that you want to use a 0.05 significance level in testing the null hypothesis that the different samples come from populations with the same mean.
Identify the value of the test statistic.
Source DF SS MS F p Factor 3 30 10.00 1.6 0.264 Error 8 50 6.25 Total 11 80
a 10.00
b 1.6
c 0.264
d 30

3. Given below are the analysis of variance results from a Minitab display. Assume that you want to use a 0.05 significance level in testing the null hypothesis that the different samples come from populations with the same mean.
Identify the p-value
Source DF SS MS F p Factor 3 30 10.00 1.6 0.264 Error 8 50 6.25 Total 11 80
a 1.6
b 10.00
c 6.25
d 0.264

4. Given below are the analysis of variance results from a Minitab display. Assume that you want to use a 0.05 significance level in testing the null hypothesis that the different samples come from populations with the same mean.
Find the critical value.
Source DF SS MS F p
Factor 3 30 10.00 1.6 0.264
Error 8 50 6.25
Total 11 80

5. Given below are the anlysis of variance results from a Minitab display. Assume that you want to use a 0.05 significance level in testing the null hypothesis that the different samples come from populations with the same mean.
What can you conclude about the equality of the population means?
Source DF SS MS F p Factor 3 30 10.00 1.6 0.264 Error 8 50 6.25 Total 11 80
a Reject the null hypothesis since the p-value is greater than the significance level.
b Accept the null hypothesis since the p-value is greater than the significance level.
c Reject the null hypothesis since the p-value is less than the significance level.
d Accept the null hypothesis since the p-value is less than the significance level.

6. If we use the amounts (in millions of dollars) grossed by movies in categories with PG, PG-13, and R ratings, we obtain the SPSS analysis of variance results shown below. Use a 0.05 significance level to test the claim that PG movies, PG-13 movies, and R movies have the same mean gross amount.
Gross Sum of Squares df Mean Square F Sig Between Groups 59110.874 2 29555.437 3.705 .035
Within Groups 271224.0 34 7977.176 Total 330334.9 36
What is the conclusion for this hypothesis test?
a Fail to reject H0. There is insufficient evidence to warrant the rejection of the claim that PG movies, PG-13 movies, and R movies have the same mean gross amount.
b Fail to reject H0. There is sufficient evidence to warrant the rejection of the claim that PG movies, PG-13 movies, and R movies have the same mean gross amount.
c Reject H0. There is sufficient evidence to warrant the rejection of the claim that PG movies, PG-13 movies, and R movies have the same mean gross amount.
d Reject H0. There is insufficient evidence to warrant the rejection of the claim that PG movies, PG-13 movies, and R movies have the same mean gross amount.

7. The data was obtained from car crash experiments. The table values are the chest deceleration data (g) for the dummy in the driver's seat. Use a 0.05 significance level to test the null hypothesis that the different weight categories have the same mean. Do the data suggest that larger cars are safer?
Subcompact Compact Midsize Full-size
59 53 55 44
59 55 47 45
58 46 50 42
55 46 54 42
59 51 53 53
a The results of an ANOVA test are insufficient to make such a claim.
b No, because the null hypothesis is not rejected.
c Yes, because the null hypothesis is rejected.
d Yes, because the null hypothesis is not rejected.

8. Refer to data table below, which shows the amounts of nicotine (mg per cigarette) in king size, 100mm menthol, and 100mm nonmenthol cigarettes. The king size cigarettes are nonfiltered, while the 100mm menthol and the 100mm nonmenthol cigarettes are filtered. Use a 0.05 significance level ot test the claim that three categories of cigarettes yield the same mean amount of nicotine. Given that only the king size cigarettes are not filtered, do the filters appear to make a difference?
King Size Menthol Filtered 100mm Nonmenthold
Brand Nicotine Brand Nicotine Brand Nicotine
1 1.6 1 1.1 1 0.7
2 1.0 2 0.9 2 1.1
3 1.0 3 1.1 3 0.5
4 1.1 4 0.8 4 1.1
5 1.5 5 1.2 5 1.1
6 1.3 6 1.4 6 0.8
7 1.2 7 1.0 7 1.1
8 1.0 8 1.2 8 1.2
9 1.2 9 1.4 9 0.8
10 1.1 10 0.9 10 1.0
Do the filters appear to make a difference?
a The results are inconclusive because the king size cigarettes are a different size than the filtered cigarettes.
b No, the filters do not appear to make a difference because there is insufficient evidence to warrant the rejection of the claim.
c No, the filters do not appear to make a difference because there is sufficient evidence to warrant the rejection of the claim.
d Given that the king size cigarettes have the largest mean, it appears that the filters do make a difference (although this conclusion is not justified by the results from analysis of variance).

9. The following table shows the two-way ANOVA output for the weights of poplar trees. Test the hypothesis that the weights of poplar trees are not affected by an interaction between site and treatment.
Source DF SS MF F P
Site 3 2.4776 0.825876 3.11 0.037
Treatment 1 0.3718 0.371777 1.40 0.243
Interaction 3 2.6768 0.892265 3.36 0.028
Error 40 10.6222 0.265555
Total 47 16.1484
Is there evidence to support the claim of interaction? (Assume a 0.05 significance level.)
a Since thee P-value for interaction is large, there is evidence of interaction.
b Since the P-value for interaction is small, there is no evidence of interaction.
c Since the P-value for interaction is large, there is no evidence of interaction.
d Since the P-value for interaction is small, there is evidence of interaction.



10. The following table shows the two-way ANOVA output for SAT scores. Assuming no interaction between gender and type of test (verbal/match), is there sufficient evidence to support the claim that gender has an effect on SAT scores?
Source DF SS MS F P
Gender 1 64094 64093.6 6.39 0.016
Verb/match 1 5818 5817.6 0.58 0.452
Interaction 1 31295 31294.5 3.12 0.086
Error 36 361091 10030.3
Total 39 462298
 Is there any evidence that gender has an effect? (Assume a 0.05 significance level.)
a Since the P-value for gender is small, there is no evidence to support the claim.
b Since the P-value for gender is large, there is no evidence to support the claim.
c Since the P-value for gender is small, there is evidence to support the claim.
d Since the P-value for gender is large, there is evidence to support the claim.

11. Fill in the missing entries in the following partially completed one-way ANOVA table.
a Source df SS MS=SS/df F-statistic
 Treatment 3 11.16
Error 13.72 0.686
Total
b Source df SS MS=SS/df F-statistic
 Treatment 3 22.97 7.66 11.16
Error 20 13.72 0.686
Total 23 36.69
c Source df SS MS=SS/df F-statistic
Treatment 3 2.55 7.66 11.16
Error 20 13.72 0.686
Total 23 16.27
d Source df SS MS=SS/df F-statistic
Treatment 3 0.184 0.061 11.16
Error 20 13.72 0.686
Total 23 13.90
e Source df SS MS=SS/df F-statistic
d Treatment 3 48.80 16.27 11.16
Error 20 13.72 0.686
Total 23 62.52

12. Assume that matched pairs of data result in the given the number of signs when the second variable is subtracted from the corresponding value of the first variable. Use the sign test with a 0.05 significance to test the null hypothesis of no difference.
Positive signs: 15; negative signs: 7; ties: 1
a Yes, because the test statistic is greater than the critical value.
b No, because the test statistic is greater than the critical value.
c Yes, because the test statistic is less than or equal to the critical value.
d No, because the test statistic is less than or equal to the critical value.

13. Use a 0.05 significance level to test the claim that when the 13th of the month falls on a Friday, the number of storms is not affected.
A random Friday Friday the 13th
12 9
15 21
12 13
8 7
2 3
6 8
Should we reject the null hypothesis that when the 13th of the month is on a Friday, the number of storms is not affected at a significance level of a=0.05?
a No, because the test statistic is less than or equal to the critical value.
b No, because the test statistic is greater than the critical value.
c Yes, because the test statistic is greater than the critical value.
d Yes, because the test statistic is less than or equal to the critical value.

14. An institute conducted a clinical trial of its methods for gender selection. The results showed that 275 of 330 babies born to parents using a specific gender-selection method were boys. Use the sign test and a 0.05 significance level to test the claim that the method used is effective in increasing the likelihood of a boy.
a Since the test statistic falls within the critical region, reject the null hypothesis. There is sufficient evidence that the method used is effective in increasing the likelihood of a boy.
b Since the test statistic does not fall within the critical region, fail to reject the null hypothesis. There is insufficient evidence that the method used is effective in increasing the likelihood of a boy.
c Since the test statistic falls within the critical region, fail to reject the null hypothesis. There is sufficient evidence that the method used is effective in increasing the likelihood of a boy.
d Since the test statistic does not fall within the critical region, reject the null hypothesis. There is insufficient evidence that the method used is effective in increasing the likelihood of a boy.

15. The data is the accompanying table give the weights (in g) of randomly selected quarters that were minted after 1964. The quarters are supposed to have a median weight of 5.670g. Use the sign test and a 0.01 significance level to test the claim that the median is equal to 5.670g.
Post-1964 Quarters
5.7321 5.6652 5.5635 5.6746
5.5834 5.6968 5.5509 5.5772
5.5976 5.7233 5.6592 5.7455
5.7176 5.6642 5.6774 5.5575
5.6885 5.6823 5.7330 5.7228
5.7099 5.6669 5.6385 5.6141
5.6293 5.7447 5.5336 5.6408
5.5995 5.6436 5.6374 5.5646
5.6701 5.5803 5.6596 5.7023
5.7149 5.5809 5.5749 5.6636
a Since the test statistic does fall within the critical region, fail to reject H0.
b Since the test statistic does fall within the critical region, reject H0.
c Since the test statistic does not fall within the critical region, fail to reject H0.
d Since the test statistic does not fall within the critical region, reject H0.

16. The same sample data are used for the sign test and for the Wilcoxon signed-ranks test, but different conclusions result. Which conclusion is likely to be better?
a The sign test
b The Wilcoxon signed-ranks test
c Both tests
d Neither test

17. Researchers collected data on the number of hospital admissions resulting from motor vehicle crashes, and results are given for Friday the 6th and Friday the 13th in the same month. Use the Wilcoxon signed-ranks test to test the claim that the matched pairs have differences that come from a population with median equal to zero at a significance level of a=0.1.
Friday 6th Friday 13th
9 10
8 9
7 12
13 6
11 6
6 12
17. Can the null hypothesis be rejected? Why?
a Yes, because the test statistic is greater than the critical value.
b Yes, because the test statistic is less than or equal to the critical value.
c No, because the test statistic is less than or equal to the critical value.
d No, because the test statistic is greater than the critical value.

18. The weights of randomly selected quarters that were minted after 1964 are given below. The quarters are supposed to have a median weight of 5.680g. Use the Wilcoxon signed-ranks test and a 0.01 significance level to test the claim that the median is equal to 5.680g. Do quarters appear to be minted according to specifications?
Post-1964 Quarters
5.7027 5.6234 5.5591 5.5636
5.7495 5.5928 5.5864 5.6485
5.7050 5.6486 5.6872 5.6703
5.5941 5.6661 5.6274 5.6848
5.7247 5.5361 5.6157 5.5609
5.6114 5.5491 5.6668 5.7344
5.6160 5.7239 5.7198 5.6449
5.5999 5.6555 5.6694 5.5804
5.7790 5.6063 5.5454 5.6010
5.6841 5.5709 5.6646 5.6022
a Fail to reject H0. There is sufficient evidence to warrant rejection of the claim that the memdian is 5.680. The quarters do not appear to be minted according to specifications.
 b Reject H0. There is sufficient evidence to warrant rejection of the claim that the memdian is 5.680. The quarters do not appear to be minted according to specifications.
c Reject H0. There is insufficient evidence to warrant rejection of the claim that the memdian is 5.680. The quarters do not appear to be minted according to specifications.
d Fail to reject H0. There is insufficient evidence to warrant rejection of the claim that the memdian is 5.680. The quarters do not appear to be minted according to specifications.

19. Which of the following distribution-free tests has no parametric counterpart?
a rank correlation test
b sign test
c runs test
d Kruskal-Wallis test

20. Which of the following tests could detect some nonlinear relationships between two variables?
a rank correlation test
b Wilcoxon signed-ranks test
c sign test
d Wilcoxon rank-sum test


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