D Question 4 2 pts In an analysis of variance, the within-group population variance estimate is 8.5 and the between-group estimate is 5.3. What is the F ratio? 8.5/5:3 = 1.60 O the square root of (5.3/8.5) = 0.79 O the square root of (8.5/5.3) = 1.27 5.3/8.5 = 0.62