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Question is in the screenshot! n1 = 25, 1 = 12, S,2 = 4 and n, = 35, 2 = 14, s,2 = 3 a.

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n1 = 25, 1 = 12, S,2 = 4 and n, = 35, 2 = 14, s,2 = 3 a. Determine the margin of error for a 95% confidence interval for the difference of the two means. b. Determine the 95% confidence interval

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