Question: Refer to Exercise 13. How large a sample is needed so that a 99% confidence interval will have margin of error of 0.08, using the

Refer to Exercise 13.

How large a sample is needed so that a 99% confidence interval will have margin of error of 0.08, using the sample proportion for p̂ ?

Exercise 13

In a survey of 802 U.S. adult drivers, 265 state that traffic is getting worse in their community. Construct a 99%

confidence interval for the proportion of adult drivers who think that traffic is getting worse.

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