17. GRE Scores The quantitative reasoning scores on the Graduate Record Examination (GRE)3 were recorded for students

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17. GRE Scores The quantitative reasoning scores on the Graduate Record Examination (GRE)3 were recorded for students admitted to three different graduate programs at a local university

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a. Do these data provide sufficient evidence to indicate a difference in the mean GRE scores for applicants admitted to the three programs?

b. Find a 95% confidence interval for the difference in mean GRE scores for Life Sciences and Physical Sciences.

c. If you find a significant difference in the average GRE scores for the three programs, use Tukey’s method for paired comparisons to determine which means differ significantly from the others. Use a 5.05.

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Introduction To Probability And Statistics

ISBN: 9780357114469

15th Edition

Authors: William Mendenhall Iii , Robert Beaver , Barbara Beaver

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