ANOVA Man Words: Mark Glickman Music: Lennon/McCartney ("Nowhere Man") He's a real ANOVA man Designing all his sampling plans Calculating mean-squared errors and p-values. Wants to test for equal mu's Knows which tables he must use All his samples he will choose at random. ANOVA man, please listen; Where's the data that you're missing? ANOVA man, what kinds of bias can you withstand? Writes down two hypotheses; Hopes to reject the first of these; Needs to list out all degrees of freedom. ANOVA man, try harder; Don't give up, you're smarter; ANOVA man, how come your students don't understand? At 0.05 he rejects Ignores the size of his effects Now he's stuck -- he's got selection bias! ANOVA man, please listen; Where's the data that you're missing? ANOVA man, what kinds of bias can you withstand? He's a real ANOVA man Designing all his sampling plans Calculating mean-squared errors and p-values.