Unformatted text preview: afﬁliation of those surveyed (you only survey people who identify themselves as Democrats or Republicans). You would like to test: does the proportion of Democrats who approve of the bill exceed that of approving Republicans by 10%? Show your work (i.e., do it by hand) for the next question. Question 3 can also easily be done by hand, but you can use a computer program to conduct tests after question 2, as long as you state the results of the test clearly — including test statistic, p-value and the decision you make in plain English. Questions 4 and 5 can be done by hand but it is easier to use a computer. 2. Exercise 9.24 (p. 559). Do this one by hand and show all your work. 3. Exercise 9.34 (p. 561). 4. Exercise 9.16 (p. 557). 5. Exercise 9.23 (p. 559). 1...
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- Spring '11
- Null hypothesis, Statistical hypothesis testing, Iowa City, new jobs