In the mid-1980s, sociologist Shere Hite undertook a study of American women's attitudes toward relationships, love, and sex by distributing 100,000 questionnaires in women's groups. One of the questions was: Do you give more emotional support to your husband or boyfriend than you receive from him? A total of 4,500 women returned the questionnaire.

An ABC News/Washington Post poll conducted at about the same time surveyed a random sample of 767 women, asking them the same question about emotional support.

a)Which survey would you expect to obtain a more representative sample of the population? Explain.

b)Of the 4,500 women who returned the Hite questionnaire, 96% said that they gave more emotional support than they received from their husbands or boyfriends. Of the 767 women interviewed in the ABC News/Washington Post poll, 44% claimed to give more emotional support than they receive. Using only the poll corresponding to your answer to part (a), determine a 95% confidence interval for the relevant population parameter. Use Minitab.

c)Provide an interpretation for your confidence interval.