💼 Pre-MBA Exam Prep

ANOVA (Analysis of Variance) tests whether:

A Two variables are correlated
B The means of three or more groups are statistically different from each other
C Data is normally distributed
D Variance equals zero

✓ Correct Answer: Option B

One-way ANOVA: compares means across 3+ groups. F-test = between-group variance / within-group variance. Significant F → at least one group mean differs. Post-hoc tests identify which pairs differ.

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