Your question is Run an A/B Test. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
How would you run an A/B test?
Explain your approach from hypothesis definition through the ship or do-not-ship decision. Cover the primary metric, guardrails, minimum detectable effect, sample-size calculation, randomization unit, test duration, statistical analysis, and common validity risks. Treat this as a practical interview exercise: state assumptions explicitly, pre-register the analysis plan, and explain how you would respond to ambiguous or conflicting results.