A simple random sample of 60 items resulted in a sample mean of 80. The population standard
Question:
a. Compute the 95% confidence interval for the population mean.
b. Assume that the same sample mean was obtained from a sample of 120 items. Provide a 95% confidence interval for the population mean.
c. What is the effect of a larger sample size on the interval estimate?
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a 80 196 15 60 80 38 or 762 ...View the full answer
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Related Book For 
Essentials Of Statistics For Business And Economics
ISBN: 9781305081598
7th Edition
Authors: David Anderson, Thomas Williams, Dennis Sweeney, Jeffrey Cam
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