In a simple random sample of 381 voters, 203 said that they were planning to vote for the incumbent mayor in the next election. a. Construct a 93% confidence interval for the proportion of voters who plan to vote for the incumbent mayor in the next election. Critical value: z* or t* = Margin of Error: E = Confidence Interval: ( (Enter the positive one.) b. Interpret your result in part (a) in a complete sentence. c. Based on the confidence interval, can you conclude that more than 50% of the voters plan to vote for the incumbent mayor? Yes No d. If the confidence level were 90% rather than 93%, would the confidence interval be wider or narrower than the result in part (a). Wider Narrower e. If the sample size were 200 rather than 381, would the confidence interval be wider or narrower than the result in part (a)? Wider Narrower