Y You are planning an evaluation of a semester-long alcohol awareness campaign at your college. Previous evaluatic that about 25% of the students surveyed will respond \"Yes\" to the question \"Did the campaign alter your behavior alcohol consumption?\" How large a sample of students should you take if you want the margin of error to be 3% for : confidence interval? (3 points total) 3. The Pew Research Center recently polled n = 1028 U.S. drivers and found that 72% enjoyed driving their automobiles 10 points total) (1) Construct a 95% confidence interval for the proportion of U.S. drivers who enjoy driving their automobiles. (2) In 1991, a Gallup Poll reported this percent to be 79%. Using the data from this poll, test the claim that the percent drivers who enjoy driving their cars has declined since 1991. Use a 5% significance level