ANOVA: The Analysis of Variance

In previous sections, we discussed the hypothesis testing procedures for the comparison of two population means.  We shall now consider the test procedure for the comparison of 3 or more population means: the ANOVA (ANalysis Of VAriances) test.  There are 3 types of ANOVAs:

Single-Factor ANOVA

Two-Factor ANOVA With Replication

Two-Factor ANOVA Without Replication