11.53 Smartest People Often Dumbest About Sunburns is the headline of an article that appeared in the

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11.53 “Smartest People Often Dumbest About Sunburns” is the headline of an article that appeared in the San Luis Obispo Tribune (July 19, 2006). The article states that “those with a college degree reported a higher incidence of sunburn than those without a high school degree—43% versus 25%.” For purposes of this exercise, suppose that these percentages were based on random samples of size 200 from each of the two groups of interest (college graduates and those without a high school degree). Is there convincing evidence that the proportion experiencing a sunburn is greater for college graduates than it is for those without a high school degree? Answer based on a test with a .05 significance level.

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Introduction To Statistics And Data Analysis

ISBN: 9781305445963

5th Edition

Authors: Roxy Peck, Chris Olsen, Jay L Devore

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