EBK STATISTICS FOR BUSINESS & ECONOMICS
12th Edition
ISBN: 9780100460461
Author: Anderson
Publisher: YUZU
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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.
- a. What is the estimate of the population
mean amount adults spend on a Halloween costume? - b. What is the sample standard deviation?
- 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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Chapter 11 Solutions
EBK STATISTICS FOR BUSINESS & ECONOMICS
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