{"blocks": [{"key": "256b2536", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "75751798", "text": "An A/B test was run in City X and City Y. In each city variant A beats B, yet when combined across both cities variant B looks better.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "3140308a", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "92c68579", "text": "How would you interpret these conflicting results?", "type": "unordered-list-item", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "c17930e6", "text": "What decision would you make and what additional analysis is needed before rollout?", "type": "unordered-list-item", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "387bfc88", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "e0bf6ab8", "text": "Discuss Simpson’s paradox, weighting by traffic, heterogeneous treatment effects, stratified analysis, and checking sample size.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}