=+of size 1112. Estimate the difference in the proportion of Americans age 12 and older who owned

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=+of size 1112. Estimate the difference in the proportion of Americans age 12 and older who owned an MP3 player in 2006 and the corresponding proportion for 2005 using a 95% confidence interval. Is zero included in the interval?

What does this tell you about the change in this proportion from 2005 to 2006?

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Statistics The Exploration And Analysis Of Data

ISBN: 9781111804138

6th Edition

Authors: John M Scheb, Jay Devore, Roxy Peck

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