{"id":1095,"date":"2023-07-27T16:45:42","date_gmt":"2023-07-27T16:45:42","guid":{"rendered":"https:\/\/statorials.org\/id\/tes-f-di-r\/"},"modified":"2023-07-27T16:45:42","modified_gmt":"2023-07-27T16:45:42","slug":"tes-f-di-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/tes-f-di-r\/","title":{"rendered":"Cara melakukan tes f di r"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><strong>Uji F<\/strong> digunakan untuk menguji apakah dua varian populasi sama. Hipotesis nol dan alternatif dari pengujian tersebut adalah sebagai berikut:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>H <sub>0<\/sub> :<\/strong> \u03c3 <sub>1<\/sub> <sup>2<\/sup> = \u03c3 <sub>2<\/sub> <sup>2<\/sup> (varians populasi sama)<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>H <sub>1<\/sub> :<\/strong> \u03c3 <sub>1<\/sub> <sup>2<\/sup> \u2260 \u03c3 <sub>2<\/sub> <sup>2<\/sup> (varians populasi <em>tidak<\/em> sama)<\/span><\/p>\n<p> <span style=\"color: #000000;\">Untuk melakukan uji-F di R, Anda dapat menggunakan fungsi <strong>var.test()<\/strong> dengan salah satu sintaks berikut:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>Metode 1:<\/strong> var.test(x, y, alternatif = \u201cdua sisi\u201d)<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>Metode 2:<\/strong> var.test(nilai ~ grup, data, alternatif = \u201cdua sisi\u201d)<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Perhatikan bahwa <em>alternatif<\/em> menunjukkan hipotesis alternatif yang akan digunakan. Standarnya adalah &#8220;dua sisi&#8221;, tetapi Anda dapat menentukannya sebagai &#8220;kiri&#8221; atau &#8220;kanan&#8221;.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Tutorial ini menjelaskan cara melakukan uji F di R menggunakan kedua metode.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Metode 1: Uji F di R<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara melakukan uji F menggunakan metode pertama:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define the two groups<\/span>\nx &lt;- c(18, 19, 22, 25, 27, 28, 41, 45, 51, 55)\ny &lt;- c(14, 15, 15, 17, 18, 22, 25, 25, 27, 34)\n\n<span style=\"color: #008080;\">#perform an F-test to determine in the variances are equal\n<\/span>var.test(x, y)\n\n\tF test to compare two variances\n\ndata: x and y\nF = 4.3871, num df = 9, denom df = 9, p-value = 0.03825\nalternative hypothesis: true ratio of variances is not equal to 1\n95 percent confidence interval:\n  1.089699 17.662528\nsample estimates:\nratio of variances \n          4.387122 \n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Statistik uji F adalah <strong>4,3871<\/strong> dan nilai p yang sesuai adalah <strong>0,03825<\/strong> . Karena nilai p ini kurang dari 0,05, kami menolak hipotesis nol. Artinya kita mempunyai cukup bukti untuk mengatakan bahwa kedua varian populasi tersebut <em>tidak<\/em> sama.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Metode 2: Uji F di R<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara melakukan uji F menggunakan metode pertama:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define the two groups<\/span>\ndata &lt;- data.frame(values=c(18, 19, 22, 25, 27, 28, 41, 45, 51, 55,\n                            14, 15, 15, 17, 18, 22, 25, 25, 27, 34),\n                   group= <span style=\"color: #3366ff;\">rep<\/span> (c('A', 'B'), <span style=\"color: #3366ff;\">each<\/span> = <span style=\"color: #008000;\">10<\/span> ))\n\n<span style=\"color: #008080;\">#perform an F-test to determine in the variances are equal\n<\/span>var.test(values~group, data=data)\n\n\tF test to compare two variances\n\ndata: x and y\nF = 4.3871, num df = 9, denom df = 9, p-value = 0.03825\nalternative hypothesis: true ratio of variances is not equal to 1\n95 percent confidence interval:\n  1.089699 17.662528\nsample estimates:\nratio of variances \n          4.387122 \n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Sekali lagi, statistik uji F adalah <strong>4,3871<\/strong> dan nilai p yang sesuai adalah <strong>0,03825<\/strong> . Karena <a href=\"https:\/\/statorials.org\/id\/p-menghargai-signifikansi-statistik\/\" target=\"_blank\" rel=\"noopener\">nilai p<\/a> ini kurang dari 0,05, kami menolak hipotesis nol.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Artinya kita mempunyai cukup bukti untuk mengatakan bahwa kedua varian populasi tersebut <em>tidak<\/em> sama.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Terkait<\/strong> : Lakukan uji F menggunakan kalkulator uji F varian sama gratis ini.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Kapan menggunakan uji F<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Uji-F biasanya digunakan untuk menjawab salah satu pertanyaan berikut:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>1.<\/strong> Apakah dua sampel berasal dari populasi yang variansinya sama?<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>2. Apakah<\/strong> perlakuan atau proses baru mengurangi variabilitas perlakuan atau proses saat ini?<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/id\/f-uji-python\/\" target=\"_blank\" rel=\"noopener noreferrer\">Cara melakukan tes F dengan Python<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/panduan-sederhana-untuk-memahami-uji-f-untuk-signifikansi-keseluruhan-dalam-regresi\/\" target=\"_blank\" rel=\"noopener noreferrer\">Bagaimana menafsirkan uji F untuk signifikansi keseluruhan dalam regresi<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Uji F digunakan untuk menguji apakah dua varian populasi sama. Hipotesis nol dan alternatif dari pengujian tersebut adalah sebagai berikut: H 0 : \u03c3 1 2 = \u03c3 2 2 (varians populasi sama) H 1 : \u03c3 1 2 \u2260 \u03c3 2 2 (varians populasi tidak sama) Untuk melakukan uji-F di R, Anda dapat menggunakan [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cara melakukan tes F di R - Statorials<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara melakukan uji F di R, termasuk contoh langkah demi langkah.\" \/>\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\/id\/tes-f-di-r\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara melakukan tes F di R - Statorials\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara melakukan uji F di R, termasuk contoh langkah demi langkah.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/tes-f-di-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-27T16:45:42+00:00\" \/>\n<meta name=\"author\" content=\"Benjamin anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Ditulis oleh\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimasi waktu membaca\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 menit\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/id\/tes-f-di-r\/\",\"url\":\"https:\/\/statorials.org\/id\/tes-f-di-r\/\",\"name\":\"Cara melakukan tes F di R - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-27T16:45:42+00:00\",\"dateModified\":\"2023-07-27T16:45:42+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara melakukan uji F di R, termasuk contoh langkah demi langkah.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/tes-f-di-r\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/tes-f-di-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/tes-f-di-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara melakukan tes f di r\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/id\/#website\",\"url\":\"https:\/\/statorials.org\/id\/\",\"name\":\"Statorials\",\"description\":\"Panduan anda untuk kompetensi statistik!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/id\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"id\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\",\"name\":\"Benjamin anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"id\",\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/image\/\",\"url\":\"http:\/\/statorials.org\/id\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"http:\/\/statorials.org\/id\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Benjamin anderson\"},\"description\":\"Halo, saya Benjamin, pensiunan profesor statistika yang menjadi guru Statorial yang berdedikasi. 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