Fish and prostate The Chapter 3 Step-By-Step looked at a Swedish study that asked 6272 men how much fish they ate and whether or not they had prostate cancer.

Here are the data:

Armed with the methods of this chapter, a student performs a two-way ANOVA on the data. Here is her 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?

Eat Fish? Prostate Cancer? No Yes Never/seldom 110 14 Small part of diet 2420 201 Moderate part 2769 209 Large part 507 42