A retrospective study examined the link between baldness and the incidence of heart disease. In the study, 1435 middle-aged men were selected at random and examined to see whether they showed signs of Heart Disease (or not) and what amount of Baldness they exhibited (none, little, some, or much).

A student runs a two factor ANOVA on these data and finds the following ANOVA table;

a) Comment on her analysis. What problems, if any, do you find with the analysis?
b) What sort of analysis might you do instead?