STAT 425 Week 11 - Analysis of Factor Level Means

Suppose we detect differences between the group means in the analysis of variance. We would like to know how those means differ. Characterizing the mean differences using valid statistical inferences requires careful analysis, e.g., adjustment for multiple comparisons. Key ideas include the analysis of contrasts, Bonferroni adjustment for multiple comparisons, and methods for improving on Bonferroni adjustments under certain conditions.