{"blocks": [{"key": "e0db46bd", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "4718683e", "text": "Engineers shipped a new Google Meet version aimed at reducing call drops, but no A/B test was possible.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "0bda6000", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "86b84f07", "text": "Describe analytical methods you would use to determine whether the new version is effective without a traditional experiment.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "208f8fcb", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "97d29fb6", "text": "Consider pre-post analysis, synthetic controls, difference-in-differences, hold-out markets, or regression discontinuity.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}