A researcher reports survey results by stating that the standard error of the mean is 20. The

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A researcher reports survey results by stating that the standard error of the mean is 20. The population standard deviation is 500.

a. How large was the sample used in this survey?

b. What is the probability that the point estimate was within ± 25 of the population mean?

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Essentials Of Statistics For Business And Economics

ISBN: 9781305081598

7th Edition

Authors: David Anderson, Thomas Williams, Dennis Sweeney, Jeffrey Cam

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Question Posted: Feb 16, 2015 01:58 AM

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A researcher reports survey results by stating that the standard error of the mean is 20. The

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a 50020 25 and n 25 2 625 b F...View the full answer

Essentials Of Statistics For Business And Economics

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