Question: Problem 7.52 Samples of size n1 = n2 = 150 were taken from the weekly output of two factories. The number of defective items produced

Problem 7.52 Samples of size n1 = n2 = 150 were taken from the weekly output of two factories. The number of defective items produced were x1 = 10 and x2 = 15, respectively. Construct an approximate 95% confidence interval for p1 − p2, the difference in the propor[1]tion of defective items produced by the two factories. What conclusions can you draw if the confidence interval includes (or does not include) 0?

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