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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Textbook Question
Chapter 21.5, Problem 7E
A stratified simple random sample was taken with the following results.
Stratum (h) |
|
Sh |
|
Nh | nh |
1 | 138 | 30 | .50 | 200 | 20 |
2 | 103 | 25 | .78 | 250 | 30 |
3 | 210 | 50 | .21 | 100 | 25 |
- a. Develop an estimate of the population
mean for each stratum. - b. Develop an approximate 95% confidence interval for the population mean in each stratum.
- c. Develop an approximate 95% confidence interval for the overall population mean.
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Modern Business Statistics with Microsoft Office Excel (with XLSTAT Education Edition Printed Access Card) (MindTap Course List)
Ch. 21.4 - 1. Simple random sampling was used to obtain a...Ch. 21.4 - Prob. 2ECh. 21.4 - Prob. 3ECh. 21.4 - Prob. 4ECh. 21.4 - Prob. 5ECh. 21.4 - Prob. 6ECh. 21.5 - 7. A stratified simple random sample was taken...Ch. 21.5 - Prob. 8ECh. 21.5 - Prob. 9ECh. 21.5 - 10. A population was divided into three strata...
Ch. 21.5 - Prob. 11ECh. 21.5 - Prob. 12ECh. 21.5 - Prob. 13ECh. 21.6 - Prob. 14ECh. 21.6 - 15. A sample of six clusters is to be taken from a...Ch. 21.6 - Prob. 16ECh. 21.6 - Prob. 17ECh. 21 - Prob. 18SECh. 21 - Prob. 19SECh. 21 - Prob. 20SECh. 21 - Prob. 21SECh. 21 - Prob. 22SECh. 21 - Prob. 23SECh. 21 - 24. A public agency is interested in learning more...
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