A simple random sample of 40 items resulted in a sample mean of 25. The population standard
Question:
a. What is the standard error of the mean, σx?
b. At 95% confidence, what is the margin of error?
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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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