HW10 - Stat 3011 Homework 10 Stat 3011 Homework 10 Due...

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Stat 3011 Homework 10 Stat 3011: Homework 10 Due: Tuesday, April 21st Directions: Where indicated, answer the questions on this sheet, not the questions in the book. Problems for which Rweb is required are marked accordingly. If the directions do not specif- ically instruct you to use Rweb, then you should do the problem by hand. Assigned Exercises: 1. 10.4 (page 480) (a) book part a (b) Verify that a 99% conﬁdence interval for the true diﬀerence is (.034,0.050). (Use ˆ p 1 = sample proportion that smoked in 1991 and ˆ p 2 = sample proportion that smoked in 2003.) (c) Interpret the interval from part b, indicating the relevance of 0 not falling in the interval. 2. 10.10 part a (page 481) - You do not have to do part b, but you should think about it. - Hint: Part a is asking you to test the manager’s claim that p A (the proportion of Group A that will buy the product) is signiﬁcantly greater than p B (the proportion of Group B that will buy the product). 3. 10.23 (page 492)

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HW10 - Stat 3011 Homework 10 Stat 3011 Homework 10 Due...

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