To understand speciation of cichlid fishes, it is important to know the genetic basis of male preference in females. Researchers crossed two species of cichlids to make an F1 generation (n = 20). They measured the degree of preference by the female F1 generation for the males of one species. They then crossed the F1 hybrids with each other to create another F2 hybrid generation (n = 33) and repeated the measurement on degree of preference for the males of the same species. If a small number of genes are important in determining the preference, then the degree of preference will differ between the F1 and F2 generations. The results of the t-test analysis are shown below. Answer the next 3 questions with the following information. Variance Fcrit Fcalc crit calc