Question: 16. Telephone Survey Methods The preceding exercise involves a one-sided hypothesis test with a 0.01 significance level. If you plan to test the claim using

16. Telephone Survey Methods The preceding exercise involves a one-sided hypothesis test with a 0.01 significance level. If you plan to test the claim using a confidence interval, what confidence level should be used? (Hint: See Table 8-2 in Section 8-2.)

Using the appropriate confidence level, construct a confidence interval of the difference between the two refusal rates. Based on the confidence interval, does it appear that the refusal rate is lower with the rigorous survey? Why or why not?

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