In a simple random sample of size 60, there were 38 individuals in the category of interest.

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In a simple random sample of size 60, there were 38 individuals in the category of interest.

a. Compute the sample proportion ̂p.

b. Are the assumptions for a hypothesis test satisfied?

Explain.

c. It is desired to test H0: p = 0.7 versus H1: p ≠ 0.7. Compute the test statistic z.

d. Do you reject H0 at the 0.05 level?

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Elementary Statistics

ISBN: 9781259969454

3rd Edition

Authors: William Navidi, Barry Monk

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