A powerful women's group has claimed that men and women differ in attitudes about sexual discrimination.A group of 50 men (group 1)and 40 women (group 2)were asked if they thought sexual discrimination is a problem in the United States.Of those sampled,11 of the men and 19 of the women did believe that sexual discrimination is a problem.Which of the following tests will you use to find out if there is any difference in attitudes about sexual discrimination?
A)Pooled-variance t test.
B)Paired t test.
C)Z test for difference in proportions.
D)Wilcoxon rank sum test.

Question

Quizplus · Accepted Answer

The appropriate test to compare proportions between two independent groups is the Z test for difference in proportions. Therefore, choice C is the best option. The pooled-variance t test is used to compare means between two independent groups, which is not applicable in this case. The paired t test is used when the same individuals are measured twice or two individuals are matched on some variable, which is not the case here. The Wilcoxon rank sum test is a nonparametric test that is used to compare the medians of two independent groups, but since we are interested in comparing proportions, it is not the best option.

A Powerful Women's Group Has Claimed That Men and Women