Simple random sampling was used to obtain a sample of n = 80 elements from a population
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Simple random sampling was used to obtain a sample of n = 80 elements from a population of N = 400. The sample mean was = 75, and the sample standard deviation was found to be s = 8.
a. Estimate the population total.
b. Estimate the standard error of the population total.
c. Develop an approximate 95% confidence interval for the population total.
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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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