{"blocks": [{"key": "abdbd2a8", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "83181e19", "text": "A food-delivery platform is receiving a spike in complaints that delivered meals arrive cold.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "1ec2b8e3", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "8e94bb16", "text": "How would you diagnose why customers receive cold food? What key metrics would you break down and monitor? Design an A/B test to evaluate a solution that keeps food hot.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "3ce5ef64", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "5b9166d5", "text": "Think supply-chain steps, time-in-transit, batching, packaging; define leading/lagging metrics, success criteria, and assignment unit.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}