When I was a student, I was one of a relative minority who worked in addition to going to classes. That circumstance has changed drastically in the intervening years. According to several recent studies, almost all students work at least part-time, and many work full-time while enrolled in classes (ACE Center for Policy and Analysis, 2006; Alfano and Eduljee, 2013; Perna, 2010). Both faculty and administrators are concerned that the shift in focus to the world outside of school can affect academic performance. We compare the GPA of students who work at least part-time outside of class with those who do not work. What test should you use and why?

When I was a student, I was one of a relative minority who worked in addition to going to classes. That circumstance has changed drastically in the intervening years. According to several recent studies, almost all students work at least part-time, and many work full-time while enrolled in classes (ACE Center for Policy and Analysis, 2006; Alfano and Eduljee, 2013; Perna, 2010). Both faculty and administrators are concerned that the shift in focus to the world outside of school can affect academic performance. We compare the GPA of students who work at least part-time outside of class with those who do not work. What test should you use and why?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section: Chapter Questions

Problem 8SGR

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When I was a student, I was one of a relative minority who worked in addition to going to classes. That circumstance has changed drastically in the intervening years. According to several recent studies, almost all students work at least part-time, and many work full-time while enrolled in classes (ACE Center for Policy and Analysis, 2006; Alfano and Eduljee, 2013; Perna, 2010). Both faculty and administrators are concerned that the shift in focus to the world outside of school can affect academic performance. We compare the GPA of students who work at least part-time outside of class with those who do not work. What statistical test should be used?
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The rapid growth of video game popularity has generated concern among practitioners, parents, scholars and politicians,” wrote researchers Hope M. Cummings and Elizabeth A. Vandewater. “Particularly during adolescence, when social interactions and academic success lay the groundwork for health in adulthood, there is concern that video games will interfere with the development of skills needed to make a successful transition to adulthood.” [Source: Cummings, H., & Vandewater, E. (2007). Relation of adolescent video game play to time spent in other activities. Archives of Pediatrics & Adolescent Medicine, 161(7), 684–689.] Cummings and Vandewater measured the time adolescents spent playing video games and the time they spent doing other activities, such as interacting with family and friends, reading or doing homework, or playing sports. Suppose you decide to conduct a similar study among a random sample of 62 teenage girls who play video games. You want to determine whether…
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