How is variation within categories and between categoriesrelevant to ANOVA? What is dfw? dfb?
In ANOVA, if the null is false, the means of the sample shouldbe very (different? Similar? zero?) and the standard deviation ofthe different samples should be (very large? Low?)
ANOVA proceeds by developing two separate estimates of what?
The population variance is a measure of what? What assumptionsare required for ANOVA? When will ANOVA tolerate some violation ofmodel assumptions?