Let n 1 = 100, X 1 = 50, n 2 = 100, and X 2 =

Question:

Let n₁ = 100, X₁ = 50, n₂ = 100, and X₂ = 30.
a. At the 0.05 level of significance, is there evidence of a significant difference between the two population proportions?
b. Construct a 95% confidence interval estimate for the difference between the two population proportions.

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