1 A simple random sample of 40 items resulted in a sample mean of 25 The population standard deviation is 5 a What is the standard error of the mean, b At 95 confidence, what is the margin of error ...

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1. A simple random sample of 40 items resulted in a sample mean of 25. The population...

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1. A simple random sample of 40 items resulted in a sample mean of 25. The population standard deviation is σ 5.

a. What is the standard error of the mean, ?

b. At 95% confidence, what is the margin of error?

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Essentials Of Statistics For Business And Economics

ISBN: 9780324568608

5th Edition

Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams

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Question Posted: Nov 06, 2024 06:00 AM

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1. A simple random sample of 40 items resulted in a sample mean of 25. The population...

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Essentials Of Statistics For Business And Economics

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