Problem 8 (6 pts, individual): You are given the following data for factors F1, F2 and F3 below (experimental design matrix and measured responses per treatment): F1 F2 F3 59 61 74 70 50 58 + + 69 67 - 50 54 + 81 85 46 44 79 81 Can you tell if the effect of F2 is important, by performing a 95% CI on the individual effect