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Chapter 8 (Sections 8.6, 8.9), Chapter 9 (Section 9.5), Chapter 10 (Sections 10.5, 10.6) Analysis of Categorical Data

Analysis of categorical data across multiple chapters in statistics.

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    Due by 11 .59 pm Ju ly 2 7 th 1 Chapter 8 (Sections 8.6, 8.9), Chapter 9 (Section 9.5), Chapter 10 (Sections 10. 5, 10.6 ) Analysis of Categorical Data Upload the completed assignment using the file extension format Lastname_Firstname_Week 5 .doc. Assignment (3 2 points due by 11 .59 pm July 2 7 th ) Note : You can team up with one of your classmates to complete the assignment (not more than two in a team); if you want to work on the assignment individually, that’s also fine. If you are working in teams, then only one submission is required per team; include both the team members’ last names as part of the assignment submission file name as well as in the assignment submission document. Please provide detailed solutions to the following problems/exercises (4 problems/exercises x 8 points each) : 1) A cruise firm is exploring the possibility of offering a ferry service between Pamban Island and Mannar Island, provided there is sufficient demand to make it feasible. The firm randomly interviewed 210 commuters from the two islands, and 146 of them indicated they would patronize the ferry service instead of the current air taxi service. Estimate the population proportion p of commuters from the two islands who would prefer the ferry service. Construct a 95% confidence interval for p .     Number of commuters interviewed 210 Number of commuters indicated they would patronize the ferry service instead of the current air taxi service 146 Estimate of the population proportion of commuters n X p     from the two islands who would prefer the ferry service: 146 ˆ Sample Proportion 0.667 210 The 95% confidence interval for the proportion of commuters from the two islands who would prefer the ferry ser p p                   2 vice: ˆ ˆ 1 0.667 1 0.667 ˆ 0.667 1.96 210 0.667 1.96 0.0325 0.667 0.064 0.603, 0.731 p p p Z n                                  

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