Statistics for Business & Economics, Revised (MindTap Course List)
Statistics for Business & Economics, Revised (MindTap Course List)
12th Edition
ISBN: 9781285846323
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
Publisher: South-Western College Pub
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Chapter 22.5, Problem 13E

a.

To determine

Obtain the sample size.

Explain the sample size that should allocated in the three strata.

b.

To determine

Find the sample size when all stratum standard deviation is equal to 100.

Find the number of element that should be allocated to each stratum when all stratum standard deviation is equal to 100.

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