{"blocks": [{"key": "e79341cd", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "2ef2fea2", "text": "Two weeks of experiment data are now available and you must report statistical significance of the new algorithm.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "3e745b14", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "8b0f8e67", "text": "Which statistical test is most appropriate for comparing mean active minutes between control and treatment? State the assumptions and how you would validate them.", "type": "unordered-list-item", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "1513c2e9", "text": "Calculate the p-value and 95% confidence interval; interpret both.", "type": "unordered-list-item", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "6802634b", "text": "Discuss Type I and Type II errors in this context and how you would adjust for multiple comparisons if the team also tracked five secondary metrics.", "type": "unordered-list-item", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "2cf5294c", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "dd26a6d7", "text": "Mention t-test vs. non-parametric options; Bonferroni/Holm corrections; power calculations.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}