For the problem of estimating the proportion of 16- to 17- year-old teenagers who text while driving,
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For the problem of estimating the proportion of 16- to 17- year-old teenagers who text while driving, determine the effect on the margin of error by increasing the level of confidence from 95% to 99%.
Formula 3
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By-Hand Approach With a 99% level of confidence, a = 10.99 = 0.01. So, to compute the margin of error, E, determine the value of =Z0.01 0.005. Then substitute this value into Formula (3) with p = 0.34 and n = 800.
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Related Book For
Statistics Informed Decisions Using Data
ISBN: 9781292157115
5th Global Edition
Authors: Michael Sullivan
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