In a large lecture class, the professor announced that the range of scores on a recent exam was from 51 to 87. How many students would you need to sample to estimate the true mean score for the class with 90 percent confidence and an error of ± 2?
A) about 17 students
B) about 55 students
C) about 35 students
D) about 188 students
RES / 341 RES/341 RES341 RES 341 QUIZ # 3
(Chapters 2+8 from Applied Statistics in Business and Economics )
To View all the Questions covered : 4 sets of RES341 Final
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