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.

💡 Why is B) the correct answer?

The correct answer to the question "ANOVA (Analysis of Variance) tests whether:" is Option B: The means of three or more groups are statistically different from each other.

The other options — A) Two variables are correlated, C) Data is normally distributed, D) Variance equals zero — are incorrect for this Pre-MBA Exam Prep question. As explained above: 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.

📚 About This Pre-MBA Exam Prep Practice Question

This 3-level Pre-MBA Exam Prep question from the Statistics topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free Pre-MBA Exam Prep practice test or use flashcards for spaced repetition review.

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ANOVA (Analysis of Variance) tests whether:

✓ Correct Answer: Option B

📚 About This Pre-MBA Exam Prep Practice Question

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