Question: Consider the null hypothesis H0: p = .25. Suppose a random sample of 400 observations is taken to perform this test about the population proportion.

Consider the null hypothesis H0: p = .25. Suppose a random sample of 400 observations is taken to perform this test about the population proportion. Using α = .01, show the rejection and non rejection regions and find the critical value(s) of z for a
a. Left-tailed test
b. Two-tailed test
c. Right-tailed test

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