ct of College Roommates on Grades s exercise, we investigate answers to the questions: How much of an effect does your roommate have on your grades? In cular, does it matter whether your roommate brings a videogame to college? A study was conducted involving n = 210 first-year ents who were randomly assigned a roommate. Table 1 gives summary statistics on grade point average (GPA) for the first ester depending on whether the student and/or the roommate brought a videogame to campus. Student Roommate brought videogame videogame brought Sample size Mean GPA St. Dev. No No 88 3.128 0.590 Yes No 44 3.039 0.689 No Yes 38 2.932 0.699 Yes Yes 40 2.754 0.639 Table 1 Videogames and GPA We consider the effect of neither student bringing videogames compared to both students bringing them. (a) Find a 95% confidence interval for the difference in means between students in rooms in which neither the student nor the roommate brings a videogame and students in rooms in which both the student and the roommate bring a videogame HN - Hy. where uy represents mean GPA for students for whom neither the student nor the roommate brings a videogame and Hy idents for whom both the student and the roommate bring a videogame.

ct of College Roommates on Grades s exercise, we investigate answers to the questions: How much of an effect does your roommate have on your grades? In cular, does it matter whether your roommate brings a videogame to college? A study was conducted involving n = 210 first-year ents who were randomly assigned a roommate. Table 1 gives summary statistics on grade point average (GPA) for the first ester depending on whether the student and/or the roommate brought a videogame to campus. Student Roommate brought videogame videogame brought Sample size Mean GPA St. Dev. No No 88 3.128 0.590 Yes No 44 3.039 0.689 No Yes 38 2.932 0.699 Yes Yes 40 2.754 0.639 Table 1 Videogames and GPA We consider the effect of neither student bringing videogames compared to both students bringing them. (a) Find a 95% confidence interval for the difference in means between students in rooms in which neither the student nor the roommate brings a videogame and students in rooms in which both the student and the roommate bring a videogame HN - Hy. where uy represents mean GPA for students for whom neither the student nor the roommate brings a videogame and Hy idents for whom both the student and the roommate bring a videogame.

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

Problem 8CR

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