Using Confidence Intervals a. Assume that we want to use a 0.05 significance level to
Chapter 9, Problem 4(choose chapter or problem)
Using Confidence Intervals a. Assume that we want to use a 0.05 significance level to test the claim that p 1 < p 2 . If we want to test that claim by using a confidence interval, what confidence level should we use? b. If we test the claim in part (a) using the sample data in Exercise 1, we get this confidence interval: 0.000508 < p 1 p 2 < 0.000309. What does this confidence interval suggest about the claim? c. In general, when dealing with inferences for two population proportions, which two of the following are equivalent: confidence interval method Pvalue method critical value method?
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