In a random sample of 500 people who took their drivers test, 445 passed. Let p be

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In a random sample of 500 people who took their driver’s test, 445 passed.

Let p be the population proportion who pass. A test will be made of H0: p =

0.85 versus H1: p > 0.85.

a. Compute the value of the test statistic.

b. Do you reject H0 at the α = 0.05 level?

c. State a conclusion.

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Elementary Statistics

ISBN: 9781264136407

4th Edition

Authors: William Navidi , Barry Monk

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