1. For this question we will revisit the example of the 2010 gubernatorial race in California that was discussed in class and that you worked on in HW3. In this race, the exit poll on which TV networks relied for their projections on election night found that, after sampling 3,889 voters, 53.1% said they voted for Democrat Jerry Brown over Republican Meg Whitman. 3889 a. (6pts) By hand, find a 95% confidence interval for the proportion of the population who voted for Brown. Show all of your work, and clearly state: Your value of Your value of z The standard error (rounded to 3 decimal places) The confidence interval The interpretation of the confidence interval