{"id":780,"date":"2023-07-28T18:48:45","date_gmt":"2023-07-28T18:48:45","guid":{"rendered":"https:\/\/statorials.org\/pl\/test-mediany-nastrojow-r\/"},"modified":"2023-07-28T18:48:45","modified_gmt":"2023-07-28T18:48:45","slug":"test-mediany-nastrojow-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/test-mediany-nastrojow-r\/","title":{"rendered":"Jak wykona\u0107 test mediany nastroju w r"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><strong>Test mediany nastroju<\/strong> s\u0142u\u017cy do por\u00f3wnywania median dw\u00f3ch lub wi\u0119cej niezale\u017cnych grup.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Do wykonania tego testu w j\u0119zyku R mo\u017cna u\u017cy\u0107 funkcji <strong>median_test<\/strong> z biblioteki <strong>monet<\/strong> , kt\u00f3ra wykorzystuje nast\u0119puj\u0105c\u0105 sk\u0142adni\u0119:<\/span><\/p>\n<blockquote>\n<p> <span style=\"color: #000000;\"><strong>median_test(odpowied\u017a~grupa, dane)<\/strong><\/span><\/p>\n<\/blockquote>\n<p> <span style=\"color: #000000;\">Z\u0142oto:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>odpowied\u017a:<\/strong> wektor warto\u015bci odpowiedzi<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>grupa:<\/strong> wektor warto\u015bci grupuj\u0105cych<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>dane:<\/strong> ramka danych zawieraj\u0105ca wektory odpowiedzi i grup<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Poni\u017cszy przyk\u0142ad ilustruje spos\u00f3b wykorzystania tej funkcji do przeprowadzenia testu mediany nastroju w R.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad: Test mediany nastroju w R<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Za\u0142\u00f3\u017cmy, \u017ce nauczyciel chce wiedzie\u0107, czy dwie r\u00f3\u017cne metody nauki daj\u0105 r\u00f3\u017cne wyniki w testach w\u015br\u00f3d uczni\u00f3w w jego klasie. Aby to przetestowa\u0107, losowo prosi 10 uczni\u00f3w, aby zastosowali jedn\u0105 metod\u0119 nauki, a kolejnych 10 uczni\u00f3w o inn\u0105. Po dw\u00f3ch tygodniach ka\u017cdy student przyst\u0119puje do tego samego egzaminu.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Postanawia zastosowa\u0107 test mediany Mooda, aby ustali\u0107, czy mediana wynik\u00f3w egzaminu r\u00f3\u017cni si\u0119 w obu grupach.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Krok 1: Utw\u00f3rz ramk\u0119 danych.<\/strong><\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#createdata<\/span>\nmethod = rep(c('method1', 'method2'), each=10)\nscore = c(75, 77, 78, 83, 83, 85, 89, 90, 91, 97, 77, 80, 84, 84, 85, 90, 92, 92, 94, 95)\nexamData = data.frame(method, score)\n\n<span style=\"color: #008080;\">#viewdata<\/span>\nexamData\n\n    method score\n1 method1 75\n2 method1 77\n3 method1 78\n4 method1 83\n5 method1 83\n6 method1 85\n7 method1 89\n8 method1 90\n9 method1 91\n10 method1 97\n11 method2 77\n12 method2 80\n13 method2 84\n14 method2 84\n15 method2 85\n16 method2 90\n17 method2 92\n18 method2 92\n19 method2 94\n20 method2 95\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Krok 2: Wykonaj test \u015bredniego nastroju.<\/strong><\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#load the coin library\n<\/span>library(corner)\n\n<span style=\"color: #008080;\">#perform Mood's Median Test<\/span>\nmedian_test(score~method, data = examData)\n\n<span style=\"color: #008080;\">#output<\/span>\n\tAsymptotic Two-Sample Brown-Mood Median Test\n\ndata: score by method (method1, method2)\nZ = -0.43809, p-value = 0.6613\nalternative hypothesis: true mu is not equal to 0<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Warto\u015b\u0107 p testu wynosi <strong>0,6613<\/strong> . Poniewa\u017c warto\u015b\u0107 ta jest nie mniejsza ni\u017c 0,05, nie mo\u017cemy odrzuci\u0107 hipotezy zerowej. Nie mamy wystarczaj\u0105cych dowod\u00f3w, aby stwierdzi\u0107, \u017ce istnieje statystycznie istotna r\u00f3\u017cnica w medianie wynik\u00f3w egzamin\u00f3w pomi\u0119dzy obiema grupami.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Domy\u015blnie funkcja ta przypisuje wynik 0 obserwacjom dok\u0142adnie r\u00f3wnym medianie. Mo\u017cna jednak okre\u015bli\u0107 t\u0119 warto\u015b\u0107 na 0,5 lub 1, u\u017cywaj\u0105c argumentu <strong>mid.score<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Na przyk\u0142ad poni\u017cszy kod przeprowadza dok\u0142adnie ten sam test mediany nastroju, ale przypisuje warto\u015b\u0107 0,5 obserwacjom r\u00f3wnym medianie:<\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#perform Mood's Median Test<\/span>\nmedian_test(score~method, <span style=\"color: #800080;\">mid.score=\"0.5\"<\/span> ,<\/strong> <strong>data = examData)\n\n<span style=\"color: #008080;\">#output<\/span>\n\tAsymptotic Two-Sample Brown-Mood Median Test\n\ndata: score by method (method1, method2)\nZ = -0.45947, p-value = 0.6459\nalternative hypothesis: true mu is not equal to 00<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Testowa warto\u015b\u0107 p okazuje si\u0119 wynosi\u0107 <strong>0,6459<\/strong> , czyli jest nieco ni\u017csza od poprzedniej warto\u015bci p wynosz\u0105cej <strong>0,6613<\/strong> . Jednak wniosek z testu jest nadal taki sam: nie mamy wystarczaj\u0105cych dowod\u00f3w, aby stwierdzi\u0107, \u017ce mediana wynik\u00f3w egzamin\u00f3w pomi\u0119dzy obiema grupami znacz\u0105co si\u0119 r\u00f3\u017cni.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Test mediany nastroju s\u0142u\u017cy do por\u00f3wnywania median dw\u00f3ch lub wi\u0119cej niezale\u017cnych grup. Do wykonania tego testu w j\u0119zyku R mo\u017cna u\u017cy\u0107 funkcji median_test z biblioteki monet , kt\u00f3ra wykorzystuje nast\u0119puj\u0105c\u0105 sk\u0142adni\u0119: median_test(odpowied\u017a~grupa, dane) Z\u0142oto: odpowied\u017a: wektor warto\u015bci odpowiedzi grupa: wektor warto\u015bci grupuj\u0105cych dane: ramka danych zawieraj\u0105ca wektory odpowiedzi i grup Poni\u017cszy przyk\u0142ad ilustruje spos\u00f3b wykorzystania [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-780","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Jak wykona\u0107 test \u015bredniego nastroju w R - Statology<\/title>\n<meta name=\"description\" content=\"Proste wyja\u015bnienie, jak wykona\u0107 test mediany nastroju w R.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/pl\/test-mediany-nastrojow-r\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak wykona\u0107 test \u015bredniego nastroju w R - Statology\" \/>\n<meta property=\"og:description\" content=\"Proste wyja\u015bnienie, jak wykona\u0107 test mediany nastroju w R.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/test-mediany-nastrojow-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-28T18:48:45+00:00\" \/>\n<meta name=\"author\" content=\"Benjamin Anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napisane przez\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin Anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Szacowany czas czytania\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pl\/test-mediany-nastrojow-r\/\",\"url\":\"https:\/\/statorials.org\/pl\/test-mediany-nastrojow-r\/\",\"name\":\"Jak wykona\u0107 test \u015bredniego nastroju w R - Statology\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-28T18:48:45+00:00\",\"dateModified\":\"2023-07-28T18:48:45+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"Proste wyja\u015bnienie, jak wykona\u0107 test mediany nastroju w R.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/test-mediany-nastrojow-r\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/test-mediany-nastrojow-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/test-mediany-nastrojow-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak wykona\u0107 test mediany nastroju w r\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/pl\/#website\",\"url\":\"https:\/\/statorials.org\/pl\/\",\"name\":\"Statorials\",\"description\":\"Tw\u00f3j przewodnik po kompetencjach statystycznych!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/pl\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pl-PL\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\",\"name\":\"Benjamin Anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pl-PL\",\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/pl\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/pl\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"caption\":\"Benjamin Anderson\"},\"description\":\"Cze\u015b\u0107, jestem Benjamin i jestem emerytowanym profesorem statystyki, kt\u00f3ry zosta\u0142 oddanym nauczycielem Statorials. 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