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3. Consider two (independent) SRSs from two populations: Sample one has a sample size of 100 is taken from a population having proportion of success, 131 = 0.8. Sample two has a sample size of 400 is taken from a population having proportion of success, :32 = 0.5. A. The mean of sampling distribution for the difference in the sample proportions, 331 152 = B. The standard deviation an of sampling distribution for the difference in the sample proportions, 131 152 = C. Suppose you wanted to test whether there is a difference in the two proportions: H0: p1 = p2, Ha: p1 - p2 is 2.13. Assuming the conditions for the Normal approximation are satisfied, the P-value of the test is