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SOC202H1 (76)
Lecture

ANOVA

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Department
Sociology
Course
SOC202H1
Professor
Scott Schieman
Semester
Summer

Description
SOC202H1S ANOVAMarch 6 2012Analysis of Variance ANOVACentral Points about ANOVABuild a case against the null hypothesis by trying to obtain a large FRatiooLarger differences between group means BSS means better case against the null null H is that theyre all the same no matter what their educational level isoSmaller differences within each group WSS the better the case against the nulloThe better able you are to explain total variation in Y with your X variable the better the case you have against the null hypothesis How well does education explain variation in DCWith repeated sampling the Fratio can be calculated for all possible sampling outcomes when the null hypothesis is trueWhen the null hypothesis is true sample group means will differ little and computed main effects will be smalldue to random sampling errorThe distribution is skewed and all scores are positive because of the squaring involved in the equationsHow does the F rati
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