Question: Independent random samples, each containing 800 observations, were selected from two binomial populations. The samples from populations 1 and 2 produced 400 and 480 successes,

Independent random samples, each containing 800 observations, were selected from two binomial populations. The samples from populations 1 and 2 produced 400 and 480 successes, respectively.

a. Test H0: 1p1 - p22 = 0 against Ha: 1p1 - p22 0.

Use a = .05.

b. Test H0: 1p1 - p22 = 0 against Ha: 1p1 - p22 0.

Use a = .01.

c. Test H0: 1p1 - p22 = 0 against Ha: 1p1 - p22 6 0.

Use a = .01.

d. Form a 90% confidence interval for 1p1 - p22.

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