One of the most popular economic issues being discussed recently is whether employers should be required to pay male and female employees the same salary for the same job. Data were collected via an Internet site where visitors were asked to submit their votes on the issue.

a. Compare if there is any difference in the proportions responding “Yes” to the question between samples of 150 men and 100 women.

b. The number of men responding “Yes” is observed to be 30 and the number of women responding “Yes”

was 45. Conduct your hypothesis test at 5%

significance level.