{"blocks": [{"key": "466d7228", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "e6ac7c96", "text": "A delivery service is receiving customer complaints that meals arrive cold.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "b203e09d", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "b482aef5", "text": "Customers complain their food is cold on delivery. How would you investigate and solve this? Detail data needed, metrics, analyses/experiments, and operational or product changes you’d recommend.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "9fccdb04", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "6281f76a", "text": "Think root-cause analysis, A/B testing, delivery logistics, packaging, driver routing.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}