CA II-1 Confidence intervals - Solve problem #8.18 http://www.youtube.com/watch?v=h2uhzcOFS2s Watch the above video and solve the problem on a Microsoft Excel Please answer the question in a typed out response and please include excel output with graphs and charts CA II-2 Hypothesis testing - Z test - Solve problem #9.16, http://www.youtube.com/watch?v=AvjJuCKUIq4 Watch the above video, and solve the problem on a Microsoft Excel Please type out response and include excel output with charts and tables CA II-3 Hypothesis testing - t test - Solve problem #9.28 http://www.youtube.com/watch?v=tdaVp9BOdjk Watch the above and solve the problem on a Microsoft Excel Please type out responses and include excel outputs with charts and graphs