Question

One month before an​ election, a poll of 610 randomly selected voters showed 54 % planning to vote for a certain candidate. A week later it became known that he had been nbsp a nbspjuvenile delinquent​, and a new poll showed only 53 ​% of 1090 voters supporting him. Do these results indicate a decrease in voter support for his ​candidacy? ​a) Test an appropriate hypothesis and state your conclusion. ​b) If you concluded there was a​ difference, estimate that difference with a 99 ​% confidence interval and interpret your interval in context. ​a) Let p1 be the proportion of voters planning to vote for the candidate in the first​ poll, and p2 be the proportion of voters planning to vote for the candidate in the new poll. Choose the correct null and alternative hypotheses below. A. Upper H 0 : p 1 minus p 2 equals 0 Upper H Subscript Upper A Baseline : p 1 minus p 2 greater than 0 B. Upper H 0 : p 1 minus p 2 equals 0 Upper H Subscript Upper A Baseline : p 1 minus p 2 less than 0 C. Upper H 0 : p 1 minus p 2 not equals 0 Upper H Subscript Upper A Baseline : p 1 minus p 2 equals 0 D. Upper H 0 : p 1 minus p 2 equals 0

Answer 1