In Example 2.6 on page 51 we consider data from a sample of statistics students that is stored in StudentSurvey. One of the survey questions asked which award students would most like to win from among an Academy Award, Nobel Prize, and Olympic gold medal. Among the 193 male students who responded, 109 chose the Olympic gold medal, while 73 of the 169 females also picked Olympic gold. Use this information to find a 90% confidence interval for the difference between the proportions of male and female statistics students who choose Olympic gold.