Sociology 2205A/B Lecture Notes - Lecture 9: Analysis Of Variance

• School: Western University
• Department: Sociology
• Course: Sociology 2205A/B
• Professor: Kathrine Gellinas

Document Summary

Anova asks "are the differences between the sample means so large that we can conclud populations represented by the samples are different. The h0 is that the population means are the same. H0: 1= 2= 3 = = k. Always have to do the first three then you can put 3 dots and put the last digit. If the h0 is true, the sample means should be about the same value. If the h0 is false, there should be substantial differences between the categories, combine relatively little difference within categories. The sample standard deviations should be low in value. If the h0 is true, there will be little difference between sample means. If the h0 is false, there will be big difference between sample means combined with small s. The larger the difference between the sample means, the more likely the h0 is false, espe there is little difference within categories.