{"blocks": [{"key": "bfcf93c6", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "981c61e2", "text": "A food-delivery platform plans to let couriers (dashers) sign up to deliver by bicycle instead of cars.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "52b3ef08", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "e074f8fe", "text": "Why do we want dashers to sign up for bikes? State the primary business goal and supporting hypotheses. Which metrics would you track to evaluate the bike program? Include success, guardrail, and driver metrics. Before full rollout, how would you design the experiment? Detail randomization unit choice, pre-launch checks, and analysis plan.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "f4d9081e", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "37d1947e", "text": "Frame hypotheses, define KPIs (e.g., delivery time), choose randomization (dasher vs market), plan power, logging, and guardrails.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}