{"id":1643,"date":"2023-07-25T13:16:19","date_gmt":"2023-07-25T13:16:19","guid":{"rendered":"https:\/\/statorials.org\/pt\/cramers-v-no-excel\/"},"modified":"2023-07-25T13:16:19","modified_gmt":"2023-07-25T13:16:19","slug":"cramers-v-no-excel","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/cramers-v-no-excel\/","title":{"rendered":"Como calcular o v de cramer no excel"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><strong>O V de Cramer<\/strong> \u00e9 uma medida da for\u00e7a da associa\u00e7\u00e3o entre duas vari\u00e1veis nominais.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Vai de 0 a 1 onde:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>0<\/strong> indica nenhuma associa\u00e7\u00e3o entre as duas vari\u00e1veis.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>1<\/strong> indica forte associa\u00e7\u00e3o entre as duas vari\u00e1veis.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">\u00c9 calculado da seguinte forma:<\/span><\/p>\n<p> <strong><span style=\"color: #000000;\">V de Cramer = \u221a <span style=\"border-top: 1px solid black;\">(X <sup>2<\/sup> \/n) \/ min(c-1, r-1)<\/span><\/span><\/strong><\/p>\n<p> <span style=\"color: #000000;\">Ouro:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>X <sup>2<\/sup> :<\/strong> A estat\u00edstica do qui-quadrado<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>n:<\/strong> tamanho total da amostra<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>r:<\/strong> N\u00famero de linhas<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>c:<\/strong> N\u00famero de colunas<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Este tutorial fornece dois exemplos de c\u00e1lculo do V de Cramer para uma tabela de conting\u00eancia no Excel.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo: Calculando V de Cramer no Excel<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Suponha que gostar\u00edamos de entender se existe uma associa\u00e7\u00e3o entre dois m\u00e9todos de prepara\u00e7\u00e3o para exames e as taxas de aprova\u00e7\u00e3o dos alunos.<\/span><\/p>\n<p> <span style=\"color: #000000;\">A tabela a seguir mostra o n\u00famero de alunos aprovados e reprovados no exame, com base no m\u00e9todo de prepara\u00e7\u00e3o para o exame utilizado:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-16212 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/cramerexcel2.png\" alt=\"\" width=\"455\" height=\"408\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">A captura de tela a seguir mostra as f\u00f3rmulas exatas que podemos usar para calcular o V de Cramer para uma tabela 2 \u00d7 2 contendo dados de 36 alunos:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-16213 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/cramerexcel3.png\" alt=\"V de Cramer no Excel\" width=\"548\" height=\"486\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">O V de Cramer \u00e9 <strong>0,1617<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Podemos usar a tabela a seguir para determinar se um V de Cramer deve ser considerado um tamanho de efeito pequeno, m\u00e9dio ou grande, dependendo dos graus de liberdade usados:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-16211 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/cramerexcel1.png\" alt=\"\" width=\"310\" height=\"171\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Neste exemplo, os graus de liberdade s\u00e3o iguais a 1. Assim, um V de Cramer de 0,1617 seria considerado um tamanho de efeito pequeno.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Por outras palavras, existe uma associa\u00e7\u00e3o bastante fraca entre o m\u00e9todo de prepara\u00e7\u00e3o para o exame utilizado e a taxa de sucesso dos alunos.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/pt\/cramers-v-em-r\/\" target=\"_blank\" rel=\"noopener\">Como calcular o V de Cramer em R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/cramers-v-em-python\/\" target=\"_blank\" rel=\"noopener\">Como calcular o V de Cramer em Python<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>O V de Cramer \u00e9 uma medida da for\u00e7a da associa\u00e7\u00e3o entre duas vari\u00e1veis nominais. Vai de 0 a 1 onde: 0 indica nenhuma associa\u00e7\u00e3o entre as duas vari\u00e1veis. 1 indica forte associa\u00e7\u00e3o entre as duas vari\u00e1veis. \u00c9 calculado da seguinte forma: V de Cramer = \u221a (X 2 \/n) \/ min(c-1, r-1) Ouro: X [&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":[],"class_list":["post-1643","post","type-post","status-publish","format-standard","hentry","category-guia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Como calcular o V de Cramer no Excel \u2013 Statorials<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como calcular o V de Cramer no Excel, com v\u00e1rios exemplos.\" \/>\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\/pt\/cramers-v-no-excel\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como calcular o V de Cramer no Excel \u2013 Statorials\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como calcular o V de Cramer no Excel, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/cramers-v-no-excel\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-25T13:16:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/cramerexcel2.png\" \/>\n<meta name=\"author\" content=\"Dr. benjamim anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dr. benjamim anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minuto\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pt\/cramers-v-no-excel\/\",\"url\":\"https:\/\/statorials.org\/pt\/cramers-v-no-excel\/\",\"name\":\"Como calcular o V de Cramer no Excel \u2013 Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-25T13:16:19+00:00\",\"dateModified\":\"2023-07-25T13:16:19+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como calcular o V de Cramer no Excel, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/cramers-v-no-excel\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/cramers-v-no-excel\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/cramers-v-no-excel\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como calcular o v de cramer no excel\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/pt\/#website\",\"url\":\"https:\/\/statorials.org\/pt\/\",\"name\":\"Statorials\",\"description\":\"O seu guia para a literacia estat\u00edstica!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/pt\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pt-PT\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\",\"name\":\"Dr. benjamim anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-PT\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Dr. benjamim anderson\"},\"description\":\"Ol\u00e1, sou Benjamin, um professor aposentado de estat\u00edstica que se tornou professor dedicado na Statorials. 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