Question: In a simple random sample of size 150, there were 90 individuals in the category of interest. a. Compute the sample proportion p. b. Are

In a simple random sample of size 150, there were 90 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 = 0.5 versus H1: p > 0.5. Compute the test statistic z.

d. Do you reject H0 at the 0.05 level?

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