In each case, determine whether the sample sizes are large enough to conclude that the sampling distribution of 1pn 1 - pn 22 is approximately normal.

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a. n = = b. n c. n = d. n = e. n = 12, n 12, n == = = 10, 1.50, 2 = .50 10, 1.90, p2 = .02 n2 = 40, 1 40, 1.80, 2 = .70 200, n2100, = .50, p2 = .01 200, n =200, p1 = .05, 2 1.05, = .09