Q13) Let's verify whether the collected sample is reflective of the students that are enrolled in the university or visiting dining facility. a. At 90% confidence, test the hypothesis that collected sample has same proportion of freshmen, sophomore, junior, and senior students as enrolled in the university. In the answers provide test statistics, p value and conclusion. b. At 10% significance, test the hypothesis that collected sample has same proportion of freshmen, sophomore, junior, and senior students as visiting dining facility. In the answers provide test statistics, p value and conclusion