Question: Refer to the U S Department of Transportation study of the

Refer to the U.S. Department of Transportation study of the level of cell phone use by drivers while they are in the act of driving a motor passenger vehicle, presented in Exercise 7.119 (p. 342). Recall that in a random sample of 1,165 drivers selected across the country, 35 were found using their cell phone.
a. Conduct a test (at α = .05) to determine whether p , the true driver cell phone use rate, differs from .02.
b. Does the conclusion, you drew in part a agree with the inference you derived from the 95% confidence interval for p in Exercise 7.119? Explain why or why not.

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  • CreatedMay 20, 2015
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