Suppose you want to conduct the two-tailed test of H0: p = .8 against Ha: p

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Suppose you want to conduct the two-tailed test of H0: p = .8 against Ha: p  .8 using a = .05. A random sample of size 100 will be drawn from the population in question.

a. Describe the sampling distribution of np under the assumption that H0 is true.

b. Describe the sampling distribution of np under the assumption that p = .75.

c. If p were really equal to .75, find the value of b associated with the test.

d. Find the value of b for the alternative Ha: p = .69.

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