Question: Independent random samples from two normally distributed populations give the

Independent random samples from two normally distributed populations give the following results:
nx = 15 x-bar = 400 sx = 20
ny = 13 y-bar = 360 sy = 25
Assume that the unknown population variances are equal and find a 90% confidence interval for the difference between population means.

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  • CreatedJuly 07, 2015
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