{"id":609,"date":"2017-04-15T03:28:46","date_gmt":"2017-04-15T03:28:46","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/conceptstest1\/chapter\/assignment-test-of-independence-using-technology\/"},"modified":"2017-05-31T04:49:58","modified_gmt":"2017-05-31T04:49:58","slug":"assignment-test-of-independence-using-technology","status":"web-only","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/suny-hccc-wm-concepts-statistics\/chapter\/assignment-test-of-independence-using-technology\/","title":{"raw":"Assignment: Test of Independence Using Technology","rendered":"Assignment: Test of Independence Using Technology"},"content":{"raw":"&nbsp;\r\n\r\nThe purpose of this activity is to gain experience conducting a chi-square test of independence using technology.\r\n\r\nRecall the report On the Front Line: <em>The Work of First Responders in a Post-9\/11 World<\/em>. We will use data from this report to investigate the question: Are alcohol-related problems among New York firefighters associated with participation in the 9\/11 rescue?\r\n\r\nHere again are our observed data:\r\n\r\n<img class=\"alignnone\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/1729\/2017\/04\/15032836\/m11_chi_square_tests_topic_11_2_m11_test_independence_3_image423.gif\" alt=\"Data table that shows alcohol problem risk for those that participated in the 9\/11 rescue and those who did not. For the 1102 that participated: 793 had no risk for alcohol problems. 309 were at moderate to severe risk. For the 551 who did not participate: 441 were at no risk for alcohol problems, and 110 were at moderate to severe risk for alcohol problems. \" width=\"584\" height=\"237\" \/>\r\n<h3>Question 1:<\/h3>\r\nState the appropriate hypotheses for the chi-square test for independence in this case.\r\n\r\nNow you will check whether the conditions for the chi-square test are met. In order to do this, you'll need to first launch the actual <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/datasets\/FirefighterStress.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">research report<\/a> and read the last paragraph on page iii of the introduction (starting with the \"The study was fully funded...\")\r\n<h3>Instructions<\/h3>\r\nClick on the link corresponding to your statistical package to see instructions for completing the activity, and then answer the questions below.\r\n\r\n<a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_r0.html\" target=\"new\"> R <\/a> | <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_statcrunch0.html\" target=\"new\"> StatCrunch <\/a> | <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_minitab0.html\" target=\"new\"> Minitab <\/a> | <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_excel0.html\" target=\"new\"> Excel 2007 <\/a> | <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_ti0.html\" target=\"new\"> TI Calculator <\/a>\r\n<h3>Question 2:<\/h3>\r\nDoes the data meet the conditions for the chi-square test?\r\n<h3><\/h3>\r\n<h3>Instructions<\/h3>\r\nClick on the link corresponding to your statistical package to see instructions for completing the activity, and then answer the questions below.\r\n\r\n<a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_r1.html\" target=\"new\"> R <\/a> | <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_statcrunch1.html\" target=\"new\"> StatCrunch <\/a> | <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_minitab1.html\" target=\"new\"> Minitab <\/a> | <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_excel1.html\" target=\"new\"> Excel 2007 <\/a> | <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_ti1.html\" target=\"new\"> TI Calculator <\/a>\r\n<h3>Question 3:<\/h3>\r\nState your conclusion in context. Also explain what the P-value means as a conditional probability based on the null hypothesis.\r\n<h3><\/h3>","rendered":"<p>&nbsp;<\/p>\n<p>The purpose of this activity is to gain experience conducting a chi-square test of independence using technology.<\/p>\n<p>Recall the report On the Front Line: <em>The Work of First Responders in a Post-9\/11 World<\/em>. We will use data from this report to investigate the question: Are alcohol-related problems among New York firefighters associated with participation in the 9\/11 rescue?<\/p>\n<p>Here again are our observed data:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/1729\/2017\/04\/15032836\/m11_chi_square_tests_topic_11_2_m11_test_independence_3_image423.gif\" alt=\"Data table that shows alcohol problem risk for those that participated in the 9\/11 rescue and those who did not. For the 1102 that participated: 793 had no risk for alcohol problems. 309 were at moderate to severe risk. For the 551 who did not participate: 441 were at no risk for alcohol problems, and 110 were at moderate to severe risk for alcohol problems.\" width=\"584\" height=\"237\" \/><\/p>\n<h3>Question 1:<\/h3>\n<p>State the appropriate hypotheses for the chi-square test for independence in this case.<\/p>\n<p>Now you will check whether the conditions for the chi-square test are met. In order to do this, you&#8217;ll need to first launch the actual <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/datasets\/FirefighterStress.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">research report<\/a> and read the last paragraph on page iii of the introduction (starting with the &#8220;The study was fully funded&#8230;&#8221;)<\/p>\n<h3>Instructions<\/h3>\n<p>Click on the link corresponding to your statistical package to see instructions for completing the activity, and then answer the questions below.<\/p>\n<p><a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_r0.html\" target=\"new\"> R <\/a> | <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_statcrunch0.html\" target=\"new\"> StatCrunch <\/a> | <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_minitab0.html\" target=\"new\"> Minitab <\/a> | <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_excel0.html\" target=\"new\"> Excel 2007 <\/a> | <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_ti0.html\" target=\"new\"> TI Calculator <\/a><\/p>\n<h3>Question 2:<\/h3>\n<p>Does the data meet the conditions for the chi-square test?<\/p>\n<h3><\/h3>\n<h3>Instructions<\/h3>\n<p>Click on the link corresponding to your statistical package to see instructions for completing the activity, and then answer the questions below.<\/p>\n<p><a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_r1.html\" target=\"new\"> R <\/a> | <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_statcrunch1.html\" target=\"new\"> StatCrunch <\/a> | <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_minitab1.html\" target=\"new\"> Minitab <\/a> | <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_excel1.html\" target=\"new\"> Excel 2007 <\/a> | <a href=\"https:\/\/s3-us-west-2.amazonaws.com\/oerfiles\/Concepts+in+Statistics\/assignments\/_u5_m2_lbd9\/_u5_m2_lbd9_ti1.html\" target=\"new\"> TI Calculator <\/a><\/p>\n<h3>Question 3:<\/h3>\n<p>State your conclusion in context. Also explain what the P-value means as a conditional probability based on the null hypothesis.<\/p>\n<h3><\/h3>\n\n\t\t\t <section class=\"citations-section\" role=\"contentinfo\">\n\t\t\t <h3>Candela Citations<\/h3>\n\t\t\t\t\t <div>\n\t\t\t\t\t\t <div id=\"citation-list-609\">\n\t\t\t\t\t\t\t <div class=\"licensing\"><div class=\"license-attribution-dropdown-subheading\">CC licensed content, Shared previously<\/div><ul class=\"citation-list\"><li>Concepts in Statistics. <strong>Provided by<\/strong>: Open Learning Initiative. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"http:\/\/oli.cmu.edu\">http:\/\/oli.cmu.edu<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY: Attribution<\/a><\/em><\/li><\/ul><\/div>\n\t\t\t\t\t\t <\/div>\n\t\t\t\t\t <\/div>\n\t\t\t <\/section>","protected":false},"author":163,"menu_order":12,"template":"","meta":{"_candela_citation":"[{\"type\":\"cc\",\"description\":\"Concepts in Statistics\",\"author\":\"\",\"organization\":\"Open Learning Initiative\",\"url\":\"http:\/\/oli.cmu.edu\",\"project\":\"\",\"license\":\"cc-by\",\"license_terms\":\"\"}]","CANDELA_OUTCOMES_GUID":"7e1615b3-4e1f-42a1-9c14-884dfc0ad181","pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-609","chapter","type-chapter","status-web-only","hentry"],"part":570,"_links":{"self":[{"href":"https:\/\/courses.lumenlearning.com\/suny-hccc-wm-concepts-statistics\/wp-json\/pressbooks\/v2\/chapters\/609","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/courses.lumenlearning.com\/suny-hccc-wm-concepts-statistics\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/courses.lumenlearning.com\/suny-hccc-wm-concepts-statistics\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/suny-hccc-wm-concepts-statistics\/wp-json\/wp\/v2\/users\/163"}],"version-history":[{"count":7,"href":"https:\/\/courses.lumenlearning.com\/suny-hccc-wm-concepts-statistics\/wp-json\/pressbooks\/v2\/chapters\/609\/revisions"}],"predecessor-version":[{"id":1527,"href":"https:\/\/courses.lumenlearning.com\/suny-hccc-wm-concepts-statistics\/wp-json\/pressbooks\/v2\/chapters\/609\/revisions\/1527"}],"part":[{"href":"https:\/\/courses.lumenlearning.com\/suny-hccc-wm-concepts-statistics\/wp-json\/pressbooks\/v2\/parts\/570"}],"metadata":[{"href":"https:\/\/courses.lumenlearning.com\/suny-hccc-wm-concepts-statistics\/wp-json\/pressbooks\/v2\/chapters\/609\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/courses.lumenlearning.com\/suny-hccc-wm-concepts-statistics\/wp-json\/wp\/v2\/media?parent=609"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/suny-hccc-wm-concepts-statistics\/wp-json\/pressbooks\/v2\/chapter-type?post=609"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/suny-hccc-wm-concepts-statistics\/wp-json\/wp\/v2\/contributor?post=609"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/suny-hccc-wm-concepts-statistics\/wp-json\/wp\/v2\/license?post=609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}