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5. [25 points total] Researchers interested in interpersonal violence surveyed a random sample of university undergraduates using a scale on which higher scores indicate greater approval (less disapproval) of interpersonal violence. They knew males would display at least as much approval of interpersonal violence as females, so they were interested in determining whether or not their data provide beyond- chance evidence that males display more approval of interpersonal violence than do females. They also expected, and found, a slightly greater spread among the male ratings as indicated in the table below. For the purposes of this question assume the standard deviations are population values (because at the Soc210 level there is too little understanding-benefit to be gained from considering the more complex alternatives) Show your work for the various steps of testing whether their sample provides evidence against a claim that there is no ser difference [15 points in approval-of-violence ratings, and report your test results carefully [10 points) Male Female Mean 2.67 Standard 0.87 0.91 Deviation (assumed values Variance 2.46 97 249

5. [25 points total] Researchers interested in interpersonal violence surveyed a random sample of university undergraduates using a scale on which higher scores indicate greater approval (less disapproval) of interpersonal violence. They knew males would display at least as much approval of interpersonal violence as females, so they were interested in determining whether or not their data provide beyond- chance evidence that males display more approval of interpersonal violence than do females. They also expected, and found, a slightly greater spread among the male ratings as indicated in the table below. For the purposes of this question assume the standard deviations are population values (because at the Soc210 level there is too little understanding-benefit to be gained from considering the more complex alternatives) Show your work for the various steps of testing whether their sample provides evidence against a claim that there is no ser difference [15 points in approval-of-violence ratings, and report your test results carefully [10 points) Male Female Mean 2.67 Standard 0.87 0.91 Deviation (assumed values Variance 2.46 97 249

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
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5. [25 points total] Researchers interested in interpersonal violence surveyed a random sample of university undergraduates using a scale on which higher scores indicate greater approval (less disapproval) of interpersonal violence. They knew males would display at least as much approval of interpersonal violence as females, so they were interested in determining whether or not their data provide beyond- chance evidence that males display more approval of interpersonal violence than do females. They also expected, and found, a slightly greater spread among the male ratings as indicated in the table below. For the purposes of this question assume the standard deviations are population values (because at the Soc210 level there is too little understanding-benefit to be gained from considering the more complex alternatives) Show your work for the various steps of testing whether their sample provides evidence against a claim that there is no ser difference [15 points in approval-of-violence ratings, and report your test results carefully [10 points) Male Female Mean 2.67 Standard 0.87 0.91 Deviation (assumed values Variance 2.46 97 249
Transcribed Image Text:5. [25 points total] Researchers interested in interpersonal violence surveyed a random sample of university undergraduates using a scale on which higher scores indicate greater approval (less disapproval) of interpersonal violence. They knew males would display at least as much approval of interpersonal violence as females, so they were interested in determining whether or not their data provide beyond- chance evidence that males display more approval of interpersonal violence than do females. They also expected, and found, a slightly greater spread among the male ratings as indicated in the table below. For the purposes of this question assume the standard deviations are population values (because at the Soc210 level there is too little understanding-benefit to be gained from considering the more complex alternatives) Show your work for the various steps of testing whether their sample provides evidence against a claim that there is no ser difference [15 points in approval-of-violence ratings, and report your test results carefully [10 points) Male Female Mean 2.67 Standard 0.87 0.91 Deviation (assumed values Variance 2.46 97 249
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