In an article titled Childhood Pastimes Are Increasingly Moving Indoors, Dennis Cauchon asserts that there have been
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a. Calculate a 95% confidence interval to estimate the proportion of 7- to 11-year-olds who rode their bike at least six times in 2004. Does this suggest that it is plausible to believe the proportion of 7- to 11-year-olds who rode their bike at least six times in 2004 is the same as in 1995?
b. Conduct a test of hypothesis to answer the question posed in part a. Are the results of parts a and b contradictory? Explain.
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Related Book For
Business Statistics A Decision Making Approach
ISBN: 9780133021844
9th Edition
Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry
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