Question: Given x1 = 50, n1 = 200, x2 = 70, n2 = 250, construct a 95% confidence interval for the difference between the population proportions.

Given x1 = 50, n1 = 200, x2 = 70, n2 = 250, construct a 95% confidence interval for the difference between the population proportions. Is there a difference between the population proportions at the 5% significance level? Explain.

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