Interview quiz track

First 2 free Intermediate Data Analyst

Data Analyst – A/B Testing

Practice data analyst interview questions on A/B testing and experiments. Cover hypothesis design, metrics, sample size, and interpreting results. Answer scenario-based questions and receive feedback on analytical thinking. Ideal for data analyst and product analyst interview prep. First 2 questions are free with full feedback.

  • Level Intermediate
  • Questions 12
  • data analyst
  • A/B testing
  • experiments
  • interview practice

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Sample data analyst – a/b testing interview questions

Preview 6 questions from this track in quiz order. In the full quiz you answer one at a time — type or speak — then get a score and feedback.

  1. How would you design an A/B test for a new checkout button?

    What a strong answer includes

    Hypothesis, primary metric, variants, and success criteria.

  2. What is the difference between statistical significance and practical significance?

    What a strong answer includes

    Clear distinction with an example.

  3. A test shows a 2% lift but is not statistically significant. What do you do?

    What a strong answer includes

    Discusses sample size, duration, or whether to extend the test.

  4. How do you choose the primary metric for an experiment?

    What a strong answer includes

    Ties it to the goal and mentions guardrail metrics.

  5. Explain sample size and why it matters.

    What a strong answer includes

    Relates it to detecting a meaningful effect.

  6. What are common pitfalls in A/B testing?

    What a strong answer includes

    Mentions peeking, multiple comparisons, or novelty effects.