// Numbas version: finer_feedback_settings
{"name": "Identifying Parts of Equations: t", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"functions": {}, "ungrouped_variables": ["changes", "r", "rev"], "name": "Identifying Parts of Equations: t", "tags": [], "advice": "", "rulesets": {}, "parts": [{"prompt": "<p>If the number of observations, $n$, $\\var{changes[r]}$ what happens to the value of $t$?</p>", "matrix": [0, "1", 0], "shuffleChoices": false, "marks": 0, "variableReplacements": [], "choices": ["<p>Stays the same</p>", "<p>{changes[r]}</p>", "<p>{rev[r]}</p>"], "variableReplacementStrategy": "originalfirst", "displayType": "radiogroup", "maxMarks": 0, "scripts": {}, "distractors": ["", "", ""], "displayColumns": 0, "showCorrectAnswer": true, "type": "1_n_2", "minMarks": 0}, {"prompt": "<p>What is $s$?</p>", "matrix": ["1", 0, 0, 0, 0], "shuffleChoices": true, "marks": 0, "variableReplacements": [], "choices": ["<p>The sample standard deviation.</p>", "<p>The sample mean.</p>", "<p>The sample variance.</p>", "<p>The population variance.</p>", "<p>The population mean.</p>"], "variableReplacementStrategy": "originalfirst", "displayType": "radiogroup", "maxMarks": 0, "scripts": {}, "distractors": ["", "", "", "", ""], "displayColumns": "1", "showCorrectAnswer": true, "type": "1_n_2", "minMarks": 0}], "statement": "<p>Given</p>\n<p>$t = \\dfrac{\\bar{x}-\\mu}{\\frac{s}{\\sqrt{n}}}$</p>\n<p>answer the following questions.</p>", "variable_groups": [], "variablesTest": {"maxRuns": 100, "condition": ""}, "preamble": {"css": "", "js": ""}, "variables": {"rev": {"definition": "reverse(changes)", "templateType": "anything", "group": "Ungrouped variables", "name": "rev", "description": ""}, "r": {"definition": "random(0,1)", "templateType": "anything", "group": "Ungrouped variables", "name": "r", "description": ""}, "changes": {"definition": "[ \"increases\", \"decreases\" ]", "templateType": "list of strings", "group": "Ungrouped variables", "name": "changes", "description": ""}}, "metadata": {"notes": "", "description": "<p>Identify parts of the equation for a $t$-score.</p>", "licence": "Creative Commons Attribution 4.0 International"}, "type": "question", "showQuestionGroupNames": false, "question_groups": [{"name": "", "pickingStrategy": "all-ordered", "pickQuestions": 0, "questions": []}], "contributors": [{"name": "Christian Lawson-Perfect", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/7/"}, {"name": "Hayley Moore", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/495/"}]}]}], "contributors": [{"name": "Christian Lawson-Perfect", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/7/"}, {"name": "Hayley Moore", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/495/"}]}