Essentials of Modern Business Statistics with Microsoft Office Excel (Book Only)
Essentials of Modern Business Statistics with Microsoft Office Excel (Book Only)
7th Edition
ISBN: 9781337298353
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams
Publisher: South-Western College Pub
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Chapter 7, Problem 48SE

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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Chapter 7 Solutions

Essentials of Modern Business Statistics with Microsoft Office Excel (Book Only)

Ch. 7.2 - Consider a finite population with five elements...Ch. 7.2 - The 2012 American League consists of 14 baseball...Ch. 7.3 - The following data are from a simple random...Ch. 7.3 - Morningstar publishes ratings data on 1208 company...Ch. 7.3 - Prob. 13ECh. 7.5 - Suppose a random sample of size 50 is selected...Ch. 7.5 - The average full-sized front-loading Energy Star...Ch. 7.5 - Prob. 22ECh. 7.5 - Prob. 25ECh. 7.6 - A random sample of size 100 is selected from a...
Ch. 7.6 - The Wall Street Journal reported that the age at...Ch. 7.6 - Thirty-six percent of all Americans drink bottled...Ch. 7.6 - The Grocery Manufacturers of America reported that...Ch. 7.8 - Consider the Spontanversation sampling problem for...Ch. 7 - A researcher reports survey results by stating...Ch. 7 - Advertisers contract with Internet service...Ch. 7 - Marion Dairies Last year Marion Dairies decided to...Ch. 7 - Marion Dairies Last year Marion Dairies decided to...Ch. 7 - Marion Dairies Last year Marion Dairies decided to...
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