When do you use multiple comparisons in a two-factor ANOVA test? Also, what are post-hoc tests in the two-factor ANOVA test, and when do you use and refer to them? Thanks!
this is not a sas question. It's sounds like somebody's homework and the answer could be easily found using a google search
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ANOVA, or Analysis Of Variance, is used to compare the averages or means of two or more populations to better understand how they differ. Watch this tutorial for more.