Solved: Using Confidence Intervalsa. Assume that we want
Chapter 9, Problem 4(choose chapter or problem)
Using Confidence Intervalsa. Assume that we want to use a 0.05 significance level to test the claim that p1 6 p2. Ifwe want to test that claim by using a confidence interval, what confidence level shouldwe use?b. If we test the claim in part (a) using the sample data in Exercise 1, we get this confidenceinterval: -0.000508 6 p1 - p2 6 -0.000309. What does this confidence interval suggestabout the claim?c. In general, when dealing with inferences for two population proportions, which two ofthe following are equivalent: confidence interval method; P-value method; critical valuemethod?
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