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In testing the hypotheses:
H0: p1 - p2 = 0.
HA : p1 - p2 > 0.
we find the following statistics:
n1 = 150, x1 = 72.
n2 = 175, x2 = 70.
a. What is the p-value of the test?
b. Briefly explain how to use the p-value to test the hypotheses, at a 1% level of significance.
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