A powerful women\'s group has claimed that men and women differ in attitudes abo

Question

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. Assuming W designates women's responses and M designates men's, which of the following are the appropriate null and alternative hypotheses to test the group's claim?

a) H0: M - W   0 versus H1: M - W > 0

b) H0: M - W   0 versus H1: M- W < 0

c) H0: M - W  = 0 versus H1: M - W 0

d) H0: M - W   0 versus H1: M - W = 0

Explanation / Answer

c) H0: M - W  = 0 versus H1: M - W 0

because the group has claimed that men and women differ in attitudes about sexual discrimination.

(Two-tailed test)

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