Evaluate confidence intervals

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Reference no: EM13106359

A Variable has a mean of 100 and a standard deviation of 16. Four observations of this variable have a mean of 108 and a sample standard deviation of 12. Test whether the sample has been drawn from the population.

a. Standardized version of x (sample mean).

b. Studentized version of x (sample mean).

Reference no: EM13106359

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