Modern Business Statistics with Microsoft Office Excel (with XLSTAT Education Edition Printed Access Card) (MindTap Course List)
Modern Business Statistics with Microsoft Office Excel (with XLSTAT Education Edition Printed Access Card) (MindTap Course List)
6th Edition
ISBN: 9781337115186
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
Publisher: Cengage Learning
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Chapter 21.5, Problem 11E

a.

To determine

Find the mean pharmacy sale for each city (stratum).

b.

To determine

Obtain an approximate 95% confidence interval for the mean pharmacy sales in each city.

c.

To determine

Find the proportion of stores with sales of $50,000 or more.

d.

To determine

Obtain an approximate 95% confidence interval for the proportion of stores with sales of $50,000 or more.

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