.' Chrome File Edit View History Bookmarks Profiles Tab Window Help Fri Apr 26 8:08 AM o0 @ Login X Confidence Intervals and S s k Dhruviben Patel - Confidenc X + & 25 web.kamihg.com/web/viewer.html?state=%7B"ids"%3A%5B"1PycJcGc6SXghxv_EWE7LwO3IDjzi_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 L S 3 Q Unit 6 Inference for Categorical Data: Proportions Name: b HW 4 Confidence Intervals and Significance Tests 1) Is the ratio of males and females that attend a large university even? An SRS of 254 students that attend the college is taken and 145 of them were female. A 99% confidence interval for p = the proportion of females that attend the university is given by (0.491, 0.651) (a) Use the confidence interval to draw a conclusion about the hypothesis Ho: p = 0.5 vs the alternative H.: p # 0.5.Be sure to indicate the appropriate significance level. (b) What information is provided by the confidence interval that would not be provided by a test of significance alone? 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). LEUELT LLEPICERT I-TLIEN