A random sample of 64 bicycle-riding adults in Portland indicated that 24 always wore a helmet while

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A random sample of 64 bicycle-riding adults in Portland indicated that 24 always wore a helmet while riding. Use the sample information to develop a 95% confidence interval estimate for the true population proportion of bicycle-riding adults in Portland who wear a helmet while riding.
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Business Statistics A Decision Making Approach

ISBN: 9780133021844

9th Edition

Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry

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