{"id":2552,"date":"2023-07-21T18:42:47","date_gmt":"2023-07-21T18:42:47","guid":{"rendered":"https:\/\/statorials.org\/id\/selamat-mencoba-di-sas\/"},"modified":"2023-07-21T18:42:47","modified_gmt":"2023-07-21T18:42:47","slug":"selamat-mencoba-di-sas","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/selamat-mencoba-di-sas\/","title":{"rendered":"Cara melakukan uji-t welch di sas"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><a href=\"https:\/\/statorials.org\/id\/tes-selamat-datang\/\" target=\"_blank\" rel=\"noopener\">Uji-t Welch<\/a> digunakan untuk membandingkan mean antara dua kelompok independen jika kedua kelompok <em>tidak<\/em> diasumsikan memiliki varian yang sama.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Tutorial ini menjelaskan cara melakukan uji-t Welch di SAS.<\/span><\/p>\n<h3> <strong>Contoh: Uji-t Welch di SAS<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">Misalkan seorang guru ingin membandingkan hasil ujian dari 12 siswa yang menggunakan buku persiapan ujian untuk mempersiapkan ujian versus 12 siswa yang tidak menggunakan buku persiapan ujian.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Berikut daftar hasil ujian siswa pada masing-masing kelompok:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Buklet<\/strong> : 90, 85, 88, 89, 94, 91, 79, 83, 87, 88, 91, 90<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Tanpa Buku Catatan<\/strong> : 67, 90, 71, 95, 88, 83, 72, 66, 75, 86, 93, 84<\/span><\/p>\n<p> <span style=\"color: #000000;\">Gunakan langkah-langkah berikut untuk melakukan uji-t Welch untuk menentukan apakah nilai rata-rata ujian antara kedua kelompok sama.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Langkah 1: Buat datanya.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Pertama, kita akan menggunakan kode berikut untuk membuat dataset di SAS:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">\/*create dataset*\/\n<\/span><span style=\"color: #800080;\"><span style=\"color: #000000;\"><span style=\"color: #800080;\">data<\/span> exam_scores;\n    <span style=\"color: #3366ff;\">input<\/span> group $score;\n    <span style=\"color: #3366ff;\">datalines<\/span> ;\nbooklet 90\nbooklet 85\nbooklet 88\nbooklet 89\nbooklet 94\nbooklet 91\nbooklet 79\nbooklet 83\nbooklet 87\nbooklet 88\nbooklet 91\nbooklet 90\nno_booklet 67\nno_booklet 90\nno_booklet 71\nno_booklet 95\nno_booklet 88\nno_booklet 83\nno_booklet 72\nno_booklet 66\nno_booklet 75\nno_booklet 86\nno_booklet 93\nno_booklet 84\n;\n<span style=\"color: #800080;\">run<\/span> ;<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Langkah 2: Lakukan uji-t Welch.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Selanjutnya, kita akan menggunakan <strong>proc ttetest<\/strong> untuk melakukan uji-t Welch:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">\/*perform Welch's t-test*\/\n<\/span><span style=\"color: #800080;\">proc ttest <span style=\"color: #000000;\"><span style=\"color: #3366ff;\">data<\/span> =exam_scores <span style=\"color: #3366ff;\">alpha<\/span> = <span style=\"color: #008000;\">0.05<\/span> ;\n    <span style=\"color: #3366ff;\">classgroup<\/span> ;\n    <span style=\"color: #3366ff;\">var<\/span> score;\n<span style=\"color: #800080;\">run<\/span> ;\n<\/span><\/span><\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-22680 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/welch1.jpg\" alt=\"\" width=\"502\" height=\"487\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Tabel terakhir berjudul <strong>Equality of Variances<\/strong> melakukan uji F untuk menentukan apakah varians antara kedua sampel sama.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Uji-F ini menggunakan hipotesis nol dan hipotesis alternatif berikut:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>H <sub>0<\/sub><\/strong> : Variansnya sama.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>H <sub>A<\/sub><\/strong> : Perbedaannya tidak sama.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Karena nilai p ( <strong>0,0046<\/strong> ) dari pengujian ini kurang dari 0,05, kami menolak hipotesis nol. Artinya varians kedua sampel tidak sama.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Jadi, kita perlu mengacu pada baris berlabel <strong>Tidak Sama<\/strong> di tabel kedua dari belakang untuk menentukan nilai t dan nilai p mana yang akan digunakan:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">nilai-t: <strong>2,24<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">nilai p: <strong>0,0417<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Ingatlah bahwa uji-t Welch menggunakan hipotesis nol dan hipotesis alternatif berikut:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>H <sub>0<\/sub> :<\/strong> \u00b5 <sub>1<\/sub> = \u00b5 <sub>2<\/sub><\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong><sub>HA<\/sub> :<\/strong> \u03bc <sub>1<\/sub> \u2260 \u03bc <sub>2<\/sub><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Karena nilai p ( <strong>0,0417<\/strong> ) kurang dari 0,05, kami menolak hipotesis nol.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Artinya, kita mempunyai cukup bukti untuk mengatakan bahwa rata-rata nilai ujian antara kedua kelompok tidak sama.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Bonus<\/strong> : Jangan ragu untuk menggunakan <a href=\"https:\/\/statorials.org\/id\/kalkulator-tes-welchs-t\/\" target=\"_blank\" rel=\"noopener\">kalkulator uji-t Welch<\/a> ini untuk secara otomatis melakukan uji-t Welch untuk dua sampel mana pun.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Tutorial berikut menjelaskan cara melakukan uji statistik umum lainnya di SAS:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/id\/sampel-uji-di-airlock\/\" target=\"_blank\" rel=\"noopener\">Cara melakukan uji-t satu sampel di SAS<\/a><br \/> Cara melakukan uji-t dua sampel di SAS<br \/> <a href=\"https:\/\/statorials.org\/id\/uji-t-berpasangan-di-sas\/\" target=\"_blank\" rel=\"noopener\">Cara melakukan uji-t sampel berpasangan di SAS<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Uji-t Welch digunakan untuk membandingkan mean antara dua kelompok independen jika kedua kelompok tidak diasumsikan memiliki varian yang sama. Tutorial ini menjelaskan cara melakukan uji-t Welch di SAS. Contoh: Uji-t Welch di SAS Misalkan seorang guru ingin membandingkan hasil ujian dari 12 siswa yang menggunakan buku persiapan ujian untuk mempersiapkan ujian versus 12 siswa yang [&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 uji-t Welch di SAS - Statorials<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara melakukan uji-t Welch di SAS, dengan contoh lengkap.\" \/>\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\/selamat-mencoba-di-sas\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara melakukan uji-t Welch di SAS - Statorials\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara melakukan uji-t Welch di SAS, dengan contoh lengkap.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/selamat-mencoba-di-sas\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-21T18:42:47+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/welch1.jpg\" \/>\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\/selamat-mencoba-di-sas\/\",\"url\":\"https:\/\/statorials.org\/id\/selamat-mencoba-di-sas\/\",\"name\":\"Cara melakukan uji-t Welch di SAS - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-21T18:42:47+00:00\",\"dateModified\":\"2023-07-21T18:42:47+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara melakukan uji-t Welch di SAS, dengan contoh lengkap.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/selamat-mencoba-di-sas\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/selamat-mencoba-di-sas\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/selamat-mencoba-di-sas\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara melakukan uji-t welch di sas\"}]},{\"@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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