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Question
Find a 90 percent confidence interval for the difference between the proportions of group l and group 2. Let p1 represent the population proportion of the people in group 1 who like a new mobile app, and let p2represent the population proportion of the people in group 2 who like a new mobile app.
1 = .21, 2 = .13, n1 = 300, and n2 = 400.Answer
This answer is hidden. It contains 47 characters.
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