{"id":113106,"date":"2023-08-15T22:52:03","date_gmt":"2023-08-15T22:52:03","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=113106"},"modified":"2023-08-15T22:52:05","modified_gmt":"2023-08-15T22:52:05","slug":"math-225n-statistics-final-exam-2-latest-versions-2023-2024-math-225n-week-8-final-exam-questions-and-detailed-answersalready-graded-achamberlaine-university","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2023\/08\/15\/math-225n-statistics-final-exam-2-latest-versions-2023-2024-math-225n-week-8-final-exam-questions-and-detailed-answersalready-graded-achamberlaine-university\/","title":{"rendered":"MATH 225N STATISTICS FINAL EXAM 2 LATEST VERSIONS 2023-2024\/MATH 225N WEEK 8 FINAL EXAM QUESTIONS AND DETAILED ANSWERS|ALREADY GRADED A+(CHAMBERLAINE UNIVERSITY)"},"content":{"rendered":"\n<p>MATH 225N STATISTICS FINAL EXAM 2 LATEST<br>VERSIONS 2023-2024\/MATH 225N WEEK 8 FINAL<br>EXAM QUESTIONS AND DETAILED<br>ANSWERS|ALREADY GRADED A+(CHAMBERLAINE<br>UNIVERSITY)<br>VERSION A<br>A fitness center claims that the mean amount of time that a person spends at the gym per visit is<br>33 minutes. Identify the null hypothesis, H0, and the alternative hypothesis, Ha, in terms of the<br>parameter \u03bc.<br>That is correct!<br>H0: \u03bc\u226033; Ha: \u03bc=33<br>H0: \u03bc=33; Ha: \u03bc\u226033<br>H0: \u03bc\u226533; Ha: \u03bc&lt;33 H0: \u03bc\u226433; Ha: \u03bc&gt;33<br>Answer Explanation<br>Correct answer:<br>H0: \u03bc=33; Ha: \u03bc\u226033<br>Let the parameter \u03bc be used to represent the mean. The null hypothesis is always stated with<br>some form of equality: equal (=), greater than or equal to (\u2265), or less than or equal to (\u2264).<br>Therefore, in this case, the null hypothesis H0 is \u03bc=33. The alternative hypothesis is<br>contradictory to the null hypothesis, so Ha is \u03bc\u226033.<br>Question 2<br>1\/1 points<br>The answer choices below represent different hypothesis tests. Which of the choices are righttailed tests? Select all correct answers.<\/p>\n\n\n\n<p>That is correct!<\/p>\n\n\n\n<p>\u2022<br>H0:X\u226517.1, Ha:X&lt;17.1 \u2022 \u2022 H0:X=14.4, Ha:X\u226014.4 \u2022 \u2022 H0:X\u22643.8, Ha:X&gt;3.8<br>\u2022<br>\u2022<br>H0:X\u22647.4, Ha:X&gt;7.4<br>\u2022<br>\u2022<br>H0:X=3.3, Ha:X\u22603.3<br>\u2022<br>Answer Explanation<br>Correct answer:<br>H0:X\u22643.8, Ha:X&gt;3.8<br>H0:X\u22647.4, Ha:X&gt;7.4<\/p>\n\n\n\n<p>Remember the forms of the hypothesis tests.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Right-tailed: H0:X\u2264X0, Ha:X&gt;X0.<\/li>\n\n\n\n<li>Left-tailed: H0:X\u2265X0, Ha:X&lt;X0.<\/li>\n\n\n\n<li>Two-tailed: H0:X=X0, Ha:X\u2260X0.<br>So in this case, the right-tailed tests are:<\/li>\n\n\n\n<li>H0:X\u22647.4, Ha:X&gt;7.4<\/li>\n\n\n\n<li>H0:X\u22643.8, Ha:X>3.8<br>Question 3<br>1\/1 points<br>Find the Type II error given that the null hypothesis, H0, is: a building inspector claims that no<br>more than 15% of structures in the county were built without permits.<br>That is correct!<br>The building inspector thinks that no more than 15% of the structures in the county were built<br>without permits when, in fact, no more than 15% of the structures really were built without<br>permits.<br>The building inspector thinks that more than 15% of the structures in the county were built<br>without permits when, in fact, more than 15% of the structures really were built without permits.<br>The building inspector thinks that more than 15% of the structures in the county were built<br>without permits when, in fact, at most 15% of the structures were built without permits.<br>The building inspector thinks that no more than 15% of the structures in the county were built<br>without permits when, in fact, more than 15% of the structures were built without permits.<br>Answer Explanation<br>Correct answer:<br>The building inspector thinks that no more than 15% of the structures in the county were built<br>without permits when, in fact, more than 15% of the structures were built without permits.<br>A Type II error is the decision not to reject the null hypothesis when, in fact, it is false. In this<br>case, the Type II error is when the building inspector thinks that no more than 15% of the<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>MATH 225N STATISTICS FINAL EXAM 2 LATESTVERSIONS 2023-2024\/MATH 225N WEEK 8 FINALEXAM QUESTIONS AND DETAILEDANSWERS|ALREADY GRADED A+(CHAMBERLAINEUNIVERSITY)VERSION AA fitness center claims that the mean amount of time that a person spends at the gym per visit is33 minutes. Identify the null hypothesis, H0, and the alternative hypothesis, Ha, in terms of theparameter \u03bc.That is correct!H0: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-113106","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/113106","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=113106"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/113106\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=113106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=113106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=113106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}