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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 408 Weeks Ago, 2 Days Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
A survey of high school students on Y=whether the subject has driven a motor vehicle after consuming a substantial amount of alcohol (1=yes), ssgender(1=female), r=race(1=black; 0=white), and g=grade ( g1=1, grade 9;g2=1, grade 10; g3=1, grade 11; g1=g2=g3=0, grade 12) has prediction equation

a. Carefully interpret effects. Explain the interaction by describing the race effect at each grade and the grade effect for each race.
b. Replace r above by r1(1=black, 0=other). The study also measured r2(1=Hispanic, 0=other), with r1=r2=0 for white. Suppose that the prediction equation is as above but with additional terms -0.29 r2+0.53r2g1+0.25 r2g2-0.06 r2g3. Interpret the effects
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