22) To conduct a nonparametric test the.
A. Population must follow the normal distribution.
B. The standard deviation must be known.
C. The data must be at least interval scale.
D. It is not necessary to make any assumption about the shape of the population.
23) Which of the following is not a characteristic of the X2
A. Its shape is based on the sample size.
B. It is not negative.
C. It approaches a normal distribution as the degrees of freedom increase.
D. It is positively skewed.
24) In a contingency table
A. The number of rows must be the same as the number of columns.
B. A variable is classified according to two criteria.
C. There must be at least 10 observations in each cell.
D. All of these
25) A dummy variable or indicator variable
A. May assume only a value of 0 or 1.
B. Is another term for the dependent variable.
C. Is equal to Y
D. Is found by (Y - Y).
26) In the ANOVA table the value of k is
A. The number of independent variables.
B. The total number of observations
C. The sum of squares total.
D. The number of degrees of freedom.
27) In a multiple regression equation
A. There is only one dependent variable.
B. The R2 term must be at least .50.
C. All the regression coefficient must be between -1.00 and 1.00.
D. None of these
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