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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | Apr 2017 |
| Last Sign in: | 363 Weeks Ago, 6 Days Ago |
| Questions Answered: | 352 |
| Tutorials Posted: | 351 |
MBA,PHD in Psychology
Northwest Florida State College
Jun-1992 - May-1997
Professor
Northwest Florida State College,
Aug-2006 - Nov-2015
In a study relating college grade point average to time spent in various activities, you dis- tribute a survey to several students. The students are asked how many hours they spend each week in four activities: studying, sleeping, working, and leisure. Any activity is put into one of the four categories, so that for each student, the sum of hours in the four activi- ties must be 168.
In the model
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GPA 5 b 0 1 b 1 study 1 b 2 sleep 1 b 3 work 1 b 4 leisure 1 u ,
does it make sense to hold sleep , work , and leisure fixed, while changing study ?
Explain why this model violates Assumption MLR.3.
How could you reformulate the model so that its parameters have a useful interpreta- tion and it satisfies Assumption MLR.3?
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