{"blocks": [{"key": "401146e0", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "62d99e73", "text": "A feature has already been launched to 100% of traffic; no control or holdout group exists.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "1855987e", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "fdaec4e5", "text": "How would you estimate the causal impact of the launch? Outline possible methodologies, required data, assumptions, and how you would communicate uncertainty.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "9e7fbe57", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "8ffa3d08", "text": "Discuss pre-post analysis, synthetic controls, difference-in-differences, or propensity scoring; emphasize validation and sensitivity checks.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}