Chapter 07 Section 72 Problem 013a Round your answers to thr

Chapter 07, Section 7.2, Problem 013a

Round your answers to three decimal places.

Solution

By central limit theorem, the mean of the sampling distirbution of means is the same as the population mean, u(X) = 70.

Also, the standard deviation is given by

sigma(X) = sigma/sqrt(n) = 14/sqrt(15) = 3.614784456.

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Summary:

u(X) = 70 [ANSWER]
sigma(X) = 3.614784456 [ANSWER]