The following matrix presents the results from an independent-measures, two-factor study with a sample of n = 10 participants in each treatment condition. Note that one treatment mean is missing. Factor B Factor A B1 B2 A1 M = 3 M 7 A2 M = 5 What value for the missing mean would result in no main effect for factor A? What value for the missing mean would result in no main effect for factor B? What value for the missing mean would result in no interaction?