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Statistics

Suppose that you're testing the hypotheses H0: p = .30 vs. HA: p ≠ .30. A sample of size 500 results in sample proportion of .25.

a. Estimate the standard deviation of sample proportion?

b. Compute the value of the z statistic.

c. Find out the P-value associated with this z statistic.

d. Discuss your conclusion at α = .05.

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