{"blocks": [{"key": "abef6317", "text": "Scenario", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "4b90a163", "text": "Statistical evaluation of billboard campaign: sample shows 65 % conversion on N=100 users; test if true rate exceeds 60 %.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "1117ad61", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "f97de13a", "text": "State the null and alternative hypotheses for this one-sided test. Compute the standard error, 95 % margin of error, and confidence interval. Based on the interval, decide whether to reject H0 at α=0.05 and interpret the result.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "0c6929f4", "text": "Hints", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "105ba551", "text": "Use SE = sqrt(p(1-p)/N); margin = 1.96*SE; compare lower bound with 0.60.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}