The One-Way Analysis of Variance (ANOVA) is like an extension of the two-sample t-test. It is use to compare the equality of more than two means. The residuals and fitted values of the response are shown in Columns AA:AB.
Null hypothesis: m1 = m2 = ... = mi
Alternate Hypothesis: m1 ≠ m2 ≠ ... ≠ mi
where mi are the means of population i