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In Testing the Hypotheses:
H0: P1 - P2 = 0 \neq

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In testing the hypotheses:
H0: p1 - p2 = 0.10
H1 : p1 - p2 ? \neq 0.10,
we find the following statistics:
n1 = 150, x1 = 72.
n2 = 175, x2 = 70.
a. Estimate with 95% confidence the difference between the two population proportions.
b. Explain how to use the confidence interval in part a. to test the hypotheses.

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a. 0.08 ± 0.107 = (-0.027, 0.117).
b. We...

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