# Question: A random sample of 500 observations produced a sample proportion

A random sample of 500 observations produced a sample proportion equal to .38. Find the critical and observed values of z for each of the following tests of hypotheses using .05.

a. H0: p = .30 versus H1: p > .30

b. H0: p = .30 versus H1: p ≠ .30

a. H0: p = .30 versus H1: p > .30

b. H0: p = .30 versus H1: p ≠ .30

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