The following statistics are computed by sampling from three normal populations whose variances are equal: (You may find it useful to reference the t table and the q table.) x1 = 28.0, n1 = 8; x2 = 32.4, n2 = 10; x3 = 37.6, n3 = 5; MSE = 23.8 a. Calculate 99% confidence intervals for 1 2, 1 3, and 2 3 to test for mean differences with Fisher's LSD approach. (Negative values should be indicated by a minus sign. Round final answers to 2 decimal points.)