Question: Two samples were drawn, each from a Normally distributed population, with the following results: x 1 = 45 s 1 = 8 n 1 =

Two samples were drawn, each from a Normally distributed population, with the following results:

x̅1 = 45  s1 = 8  n1 = 12

x̅2 = 52  s2 = 5  n2 = 18

Estimate the difference between the population means, using the 95% confidence level.

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