A stratified simple random sample was taken with the following results. a. Develop an estimate of the
Question:
A stratified simple random sample was taken with the following results.
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.
Transcribed Image Text:
Stratum (h) 138 103 210 30 25 50 50 .78 21 200 250 100 20 30 25
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a Stratum 1 138 Stratum 2 103 Stratum 3 210 b Stratum 1 138 138 263...View the full answer
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Related Book For
Statistics For Business & Economics
ISBN: 9781285846323
12th Edition
Authors: David Anderson, Dennis Sweeney, Thomas Williams, Jeffrey Camm, James Cochran
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