In a survey of 420 U.S. females ages 18 to 64, 279 say they have gone to
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In a survey of 420 U.S. females ages 18 to 64, 279 say they have gone to the dentist in the past year.
Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the confidence intervals. If convenient, use technology to construct the confidence intervals.
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Elementary Statistics Picturing The World
ISBN: 9780321911216
6th Edition
Authors: Ron Larson, Betsy Farber
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