{"blocks": [{"key": "0910566b", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "abd2a370", "text": "Product team wants to know whether a new chat-notification design increases daily active users in Google Workspace Chat.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "b5511fb0", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "e85ebf36", "text": "Design a causal inference study to estimate the notification feature’s impact on engagement. State identification strategy, required data, assumptions, and how you would validate those assumptions.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "ae74eb6a", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "d309dd91", "text": "Randomized experiment vs. observational; diff-in-diff, propensity score, parallel-trends checks.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}