{"blocks": [{"key": "099dc145", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "eadc1495", "text": "Evaluating a new hashtag recommendation algorithm through experimentation", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "ed7c6191", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "0dd73fc2", "text": "How would you design and run an experiment to test the new hashtag recommender, specifically how would you choose test and control groups?", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "240d6de4", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "89c39e32", "text": "Cover randomization unit, stratification, sample size, guardrail metrics, exposure overlap, and statistical power.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}