Your question is Define Metrics for a Customer 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).
You work on a customer-facing experience and are asked to evaluate a proposed change in an A/B test. Leadership wants a clear primary metric and a small set of guardrails before the experiment launches.
How would you define the primary metric and guardrails for this test, and how would you make sure the experiment is powered and analyzed correctly before deciding whether to ship?