Approval is up but chargebacks and cost moved too — do you ship?
Decide from resultsHardProblem. A payment-optimization test is positive on the primary metric (authorization rate, +1.2pt). But chargebacks ticked up, cost per transaction rose, and the recovery effect is still climbing weeks in. You're reading ~15 metrics. Do you ship?
Before you reveal: say your answer out loud, as if you were in the real interview — get your reasoning across clearly first. There is no single correct answer: reading what the interviewer is really after and defending your own thinking is what makes an answer strong.