Refer to Table 6.12, and treat the data as matched pairs on opinion, stratified by gender.

a. For each gender, test equality of the true proportions supporting government action for the two items, and construct a 90% confidence interval for the difference between the true proportions of support. Interpret.

b. Construct a 90% confidence interval for the difference between males and females in their differences of proportions of support for each item. (Hint: The gender samples are independent, so the variance of the difference is the sum of the variances.)

c. Estimate the odds ratio exp(B) for logit model (9.2.1) for each gender. Interpret.

d. Explain why a test of independence for the 22 table using entries (6, 160) from Table 6.12 in row 1 and entries (11, 181) in row 2 compares the odds ratios in

(c) for the genders.