{"blocks": [{"key": "cd916da2", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "f6ddee61", "text": "You are the product analyst for a messaging platform planning to introduce a group-calling capability.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "c602554d", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "15cb9773", "text": "What survey questions would you ask current and potential users to uncover their needs for group calling?", "type": "unordered-list-item", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "b2842b8e", "text": "How would you benchmark competitor adoption of group calls when you lack direct access to their data?", "type": "unordered-list-item", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "fd32c34b", "text": "Propose an experiment to measure the impact of launching group calls: define treatment, control, primary and guardrail metrics. Is total call volume an appropriate primary metric—why or why not?", "type": "unordered-list-item", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "7206470f", "text": "Group calling exhibits strong network effects. If engineering resources prevent a cluster-randomized rollout, how else could you control for contamination and measure causal impact?", "type": "unordered-list-item", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "467dbb6e", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "2fcbe977", "text": "Think about feature importance, willingness to pay, self-reported usage, third-party data, simulations, causal-inference corrections like diff-in-diff or instrumental variables.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}