Untitled 1 - A 1993 survey conducted by the local paper in...

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A 1993 survey conducted by the local paper in Columbus, Ohio one week before election day, asked voters who they would vote for as City Attorney. The goal was to predict the outcome of the upcoming election. Thirty-seven percent said they would vote for the Democratic candidate. On election day, 41% actually voted for the Democratic candidate. The number 37% is a a. parameter. b. statistic. c. sample. 1 out of 1 b. This is correct. A statistic describes a sample. In this case the sample would be those who responded to the survey. The population would be all individuals who actually vote on election day because the goal of the study was to predict the results of the actual election (the actions of all those voting on election day). The number 37% describes a characteristic of the sample. Text reference: pages 32-33. 2 A simple random sample of 20 undergraduates at Johns Hopkins University found that 60% of those sampled felt that drinking was a problem among college students. A simple random sample of 20 undergraduates at Ohio State University found that 70% felt that drinking was a problem among college students. The number of undergraduates at Johns Hopkins University is approximately 2500, while the number at Ohio State is approximately 40,000. We conclude a. the sample from Johns Hopkins has much less variability than that from Ohio State. b. the sample from Johns Hopkins has much more variability than that from Ohio State.
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This note was uploaded on 04/10/2010 for the course STAT 101 taught by Professor Wills during the Spring '10 term at Ohio Wesleyan.

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Untitled 1 - A 1993 survey conducted by the local paper in...

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