2) A psychologist is interested in the effects of alcohol and valium on driving ability. She thus designs a 4 X 2 factorial experiment with 12 subjects in each group and 96 subjects total. Your task is to complete the ANOVA summary table, determine whether there is an A main effect, a B main effect, andfor an interaction and comment on whether any follow-up tests are needed (note, I'm not asking you to do the follow-up tests, just say whether they are needed or not, and which tests should be done). Set alpha at .05. Source SS df MS F A 25 B 30 AB 1 10 Error 125