Complaints by branch (5-sample ANOVA, unbalanced)
Complaints per day across five branches A–E, sample sizes 8/10/12/15/9. Branch D has a clearly elevated mean (6.2 vs. ~5.0) — post-hoc comparisons separate D from the rest.
Complaints per day across five branches A–E, sample sizes 8/10/12/15/9. Branch D has a clearly elevated mean (6.2 vs. ~5.0) — post-hoc comparisons separate D from the rest.