Judging Sampling Design. In each of the following situations, describe negative aspects of the study design. a) A questionnaire is mailed to a simple random sample of 500 household addresses in a city. Ten are returned as bad addresses, 63 are returned completed, and the rest are not returned. The research analyzed the 63 cases and reports that they represent a "simple random sample of city households" (3 points) b) A newspaper asks readers to vote at its Internet site to determine whether they believe government funding for health-related programs should be cut. Based on 1434 votes, the newspaper reports that 93% of the city's residents believe that health-related programs should be cut (3 points)
Judging Sampling Design. In each of the following situations, describe negative aspects of the study design. a) A questionnaire is mailed to a simple random sample of 500 household addresses in a city. Ten are returned as bad addresses, 63 are returned completed, and the rest are not returned. The research analyzed the 63 cases and reports that they represent a "simple random sample of city households" (3 points) b) A newspaper asks readers to vote at its Internet site to determine whether they believe government funding for health-related programs should be cut. Based on 1434 votes, the newspaper reports that 93% of the city's residents believe that health-related programs should be cut (3 points)
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.2: Box-and-whisker Plots
Problem 1E
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