EBK ESSENTIALS OF STATISTICS FOR BUSINE
EBK ESSENTIALS OF STATISTICS FOR BUSINE
8th Edition
ISBN: 8220103648783
Author: Anderson
Publisher: CENGAGE L
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Chapter 11, Problem 26SE

a.

To determine

Check whether the sample indicates that the maximum acceptable variance is being exceed.

b.

To determine

Compute the 90% confidence interval estimate of the population variance of the ball bearings in the population.

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