The following statistics are computed by sampling from three normal populations whose variances are equal: (You may find it useful to reference the table and the table.) X - 25.3, n] = 0; X2 31.5, n2 - 10; x3 = 32.3, n3 - 6; MSE - 27.2 b. Repeat the analysis with Tukey's HSD approach. (If the exact value for ng is not found in the table, then round down. Negative values should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places. Round your answers to 2 decimal places.) Confidence interval Can we conclude that the population means differ? Population Mean Differences 1 - 2 1-3 2-3 c. Which of these two approaches would you use to determine whether differences exist between the population means? Fisher's LSD Method since it ensures that the means are not correlated. Tukey's HSD Method since it protects against an inflated risk of Type I Error. Fisher's LSD Method since it protects against an inflated risk of Type 1 Error. Tukey's HSD Method since it ensures that the means are not correlated