Statistics for Business & Economics, Revised (MindTap Course List)
Statistics for Business & Economics, Revised (MindTap Course List)
12th Edition
ISBN: 9781285846323
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
Publisher: South-Western College Pub
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Chapter 11.1, Problem 6E

Americans spend nearly $7 billion on Halloween costumes and decorations (The Wall Street Journal, October 27, 2011). Sample data showing the amount, in dollars, 16 adults spent on a Halloween costume are as follows.

Chapter 11.1, Problem 6E, Americans spend nearly 7 billion on Halloween costumes and decorations (The Wall Street Journal,

  1. a. What is the estimate of the population mean amount adults spend on a Halloween costume?
  2. b. What is the sample standard deviation?
  3. c. Provide a 95% confidence interval estimate of the population standard deviation for the amount adults spend on a Halloween costume.
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Statistics for Business & Economics, Revised (MindTap Course List)

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