{"id":155096,"date":"2022-03-26T00:15:57","date_gmt":"2022-03-25T18:45:57","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/level-of-significance-in-statistics-definition-p-value-significance-level-and-faqs\/"},"modified":"2022-12-31T15:21:02","modified_gmt":"2022-12-31T09:51:02","slug":"level-of-significance-in-statistics-definition-p-value-significance-level-and-faqs","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/maths\/level-of-significance\/","title":{"rendered":"Level of Significance in Statistics &#8211; Definition, P-value Significance Level and FAQs"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_37 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' style='display:block'><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitylearn.com\/surge\/maths\/level-of-significance\/#P-value_Significance_Level\" title=\"P-value Significance Level\">P-value Significance Level<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitylearn.com\/surge\/maths\/level-of-significance\/#Significance_Level_Definition\" title=\"Significance Level Definition\">Significance Level Definition<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/infinitylearn.com\/surge\/maths\/level-of-significance\/#P-Value_and_Significance_Level\" title=\"P-Value and Significance Level\">P-Value and Significance Level<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/infinitylearn.com\/surge\/maths\/level-of-significance\/#Rejection_Region\" title=\"Rejection Region\">Rejection Region<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/infinitylearn.com\/surge\/maths\/level-of-significance\/#Non-Rejection_Region\" title=\"Non-Rejection Region\">Non-Rejection Region<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"P-value_Significance_Level\"><\/span>P-value Significance Level<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The p-value is a measure of the strength of the evidence against the null hypothesis. It is the probability of observing a sample statistic as extreme or more extreme than the one observed, given that the null hypothesis is true. The p-value is always between 0 and 1.<\/p>\n<p>The significance level is the probability of rejecting the null hypothesis when it is in fact true. It is usually set to 0.05, which means that there is a 5% chance of rejecting the null hypothesis when it is in fact true.<\/p>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-155095 size-full\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/03\/level-of-significance-in-statistics-definition-pvalue-significance-level-and-faqs.jpg\" alt=\"\" width=\"606\" height=\"428\" srcset=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/03\/level-of-significance-in-statistics-definition-pvalue-significance-level-and-faqs.jpg?v=1648233954 606w, https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/03\/level-of-significance-in-statistics-definition-pvalue-significance-level-and-faqs-300x212.jpg?v=1648233954 300w\" sizes=\"(max-width: 606px) 100vw, 606px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Significance_Level_Definition\"><\/span>Significance Level Definition<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A significance level is the probability of making a Type I error. The significance level is also known as the alpha level.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"P-Value_and_Significance_Level\"><\/span>P-Value and Significance Level<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The p-value is the probability of obtaining a statistic at least as extreme as the one that was actually observed, given that the null hypothesis is true. The significance level is the probability of rejecting the null hypothesis when it is true.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Rejection_Region\"><\/span>Rejection Region<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In statistics, the rejection region is the set of all points in the sample space for which a hypothesis test leads to the rejection of the null hypothesis.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Non-Rejection_Region\"><\/span>Non-Rejection Region<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>No-rejection region is a region in which an object is not rejected by an environment. In other words, an object can exist in this region without being affected by the environment.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>P-value Significance Level The p-value is a measure of the strength of the evidence against the null hypothesis. It is [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"Level of Significance in Statistics","_yoast_wpseo_title":"Level of Significance in Statistics - Definition","_yoast_wpseo_metadesc":"Learn about level of significance topic of maths in details explained by subject experts on infinitylearn.com. Register free for online.","custom_permalink":"maths\/level-of-significance\/"},"categories":[13],"tags":[],"table_tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Level of Significance in Statistics - Definition<\/title>\n<meta name=\"description\" content=\"Learn about level of significance topic of maths in details explained by subject experts on infinitylearn.com. 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