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{"name": "Leonardo's copy of True/false - Hospital wait times", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"tags": [], "ungrouped_variables": [], "variables": {"t_statements": {"name": "t_statements", "group": "Statements", "description": "", "templateType": "list of strings", "definition": "[ safe(\"Even if we don\\'t know the population distribution, the large sample size (64) makes it is reasonable to assume that the sampling distribution is nearly normal.\"), safe(\"We are 95% confident that the average wait time of all A&E patients at Southmead hospital is between 128 and 147.\"), safe(\"The margin of error is 9.5.\"), safe(\"If the study was repeated 100 times, using 100 different random samples each corresponding to a different 95% CI, roughly 95 of such CIs would capture the population mean.\") ]"}, "statement_marks": {"name": "statement_marks", "group": "Statements", "description": "", "templateType": "anything", "definition": "map([1,-1],x,t_statements)+map([-1,1],x,f_statements)"}, "choices": {"name": "choices", "group": "Statements", "description": "", "templateType": "anything", "definition": "shuffle(0..len(statements)-1)[0..6]"}, "f_statements": {"name": "f_statements", "group": "Statements", "description": "", "templateType": "list of strings", "definition": "[ safe(\"We are 95% confident that the average wait time of the study\\'s 64 patients is between 128 and 147 minutes.\"), safe(\"We do not know that the population distribution of the wait times is nearly normal, therefore the CI is not valid.\"), safe(\"If the study was repeated 100 times, using 100 different random samples, 95 of such samples would have a mean between 128 and 147 minutes.\"), safe(\"To reduce the margin of error, we should reduce the sample size.\") ]"}, "statements": {"name": "statements", "group": "Statements", "description": "", "templateType": "anything", "definition": "t_statements+f_statements"}}, "functions": {}, "rulesets": {"std": ["all", "fractionNumbers", "!collectNumbers", "!noLeadingMinus"]}, "variablesTest": {"maxRuns": 100, "condition": ""}, "name": "Leonardo's copy of True/false - Hospital wait times", "statement": "<p>A study is conducted on the time A&amp;E patients need to wait before seeing a doctor at Southmead hospital. A sample of 64 patients is analyzed, and the corresponding 95% confidence interval (CI) for the wait time in minutes is: (128, 147).&nbsp;</p>\n<p>Note that every correct answer is worth 1 mark &ndash; but every wrong answer loses a mark.</p>", "advice": "\n  \n  \n  <p>Check against your course notes.</p>\n  \n  \n  ", "metadata": {"description": "<p>Multiple response question (3 correct out of 6) re properties of convergent and divergent sequences. 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