.' Chrome File Edit View History Bookmarks Profiles Tab Window Help Fri Apr 26 8:09 AM [ X ] - Login X Confidence Intervals and S b k Dhruviben Patel - Confiden X E & 25 web.kamihg.com/web/viewer.html?state=%7B"ids"%3A%5B"1PycJcGc6SXghxv_EwWE7LwO3IDjzi_T5v"%5D%2C"action"... % U.'{ OCS Bookmarks |& Google Docs @ Home | Schoology . Google Slides A My Drive - Google... College Board - Si... (10T kami O =~ Kami Schoolo... Dhruviben Patel - Confidence Intervals and Significance Tests | - + 100% S .S R /S 2) In political campaigns, an attack ad (\"mudslinging\") is an advertisement whose message is designed to personally attack an opposing candidate in order to gain support for the candidate waging the attack. A recent candidate running for governor noticed his support in the polls had slipped, and only 45% of voters now supported him. His campaign ran the attack ad, hoping to boost his voter approval. Two weeks after the ad ran, the poll was run again and it found that out of the SRS of 450 voters, 233 supported the candidate. The 95% confidence interval for the proportion of voters who support him is (0.472, 0.564). (a) Why is a two-sided hypothesis test appropriate to run in this situation? (b) Suppose his pollsters conducted a test of Ho: p = 0.45 vs the alternative Ha: p # 0.45, using a. = 0.05. Use the confidence interval to determine whether this test would reject or fail to reject the null hypothesis. Explain your reasoning. (c) Find the P-value for the test described in part (a), and explain what it measures in the context of the problem. LEUELT LLEEICERS I-TLIEN