{"id":605,"date":"2024-08-29T10:08:19","date_gmt":"2024-08-29T08:08:19","guid":{"rendered":"https:\/\/site.ellistat.com\/?p=605"},"modified":"2024-10-23T15:02:07","modified_gmt":"2024-10-23T13:02:07","slug":"the-proof-the-and-fisher-the-origin-of-experience-plans","status":"publish","type":"post","link":"https:\/\/ellistat.com\/en\/la-preuve-le-the-et-fisher-lorigine-des-plans-dexperience\/","title":{"rendered":"Proof, tea and Fisher: the origin of experimental design"},"content":{"rendered":"

In the design of experiments in statistics, the lady sipping tea is a randomized experiment reported by Ronald Fisher in his 1935 book The Design of Experiments.<\/p>\n\n\n\n

One day, Ronald Aylmer Fisher<\/a> (the inventor of experimental design) witnessed a scene in which a lady was outraged:<\/p>\n\n\n\n

She had been served tea with milk first!<\/p>\n\n\n\n

Fisher, amused, doubted, however, that the order in which the tea and milk were added would affect the taste of the drink. The lady said she could taste a difference.<\/p>\n\n\n\n

Fisher challenged her. He devised a test that is still known as Fisher's Exact Test. Simply compare 4 cups for each configuration. If all 8 cups are recognized, then the difference is statistically proven.<\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

La Lady had no difficulty in recognizing the order in which many more cups were prepared than was necessary to prove her assertion. In his book, Fisher's description runs to less than 10 pages, and is distinguished by its simplicity and completeness in terms of terminology, calculations and experimental design.<\/p>\n\n\n\n

Even if the Y is not measurable, it's easy to provide statistical proof of a difference. Six Sigma can be as simple as that! To find out more about experimental design, you can follow our training<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

Dans la conception des exp\u00e9riences en statistique, la dame d\u00e9gustant du th\u00e9 est une exp\u00e9rience al\u00e9atoire rapport\u00e9e par Ronald Fisher dans son livre The Design of Experiments (Les Plans d\u2019Exp\u00e9rience) de 1935. Un jour, Ronald Aylmer Fisher (l\u2019inventeur des plans d\u2019exp\u00e9riences) assista \u00e0 une sc\u00e8ne ou une lady \u00e9tait outrag\u00e9e : On lui avait servi le th\u00e9 […]<\/p>\n","protected":false},"author":2,"featured_media":606,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7],"tags":[],"class_list":["post-605","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-data-analysis"],"acf":[],"yoast_head":"\nLa preuve, le th\u00e9 et Fisher : l\u2019origine des plans d\u2019exp\u00e9rience - Ellistat<\/title>\n<meta name=\"description\" content=\"Fisher (l'inventeur des plans d'exp\u00e9riences) con\u00e7ut un test \u00e0 partir de tasses de th\u00e9 pour apporter la preuve statistique de la diff\u00e9rence.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ellistat.com\/en\/the-proof-the-and-fisher-the-origin-of-experience-plans\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La preuve, le th\u00e9 et Fisher : l\u2019origine des plans d\u2019exp\u00e9rience - Ellistat\" \/>\n<meta property=\"og:description\" content=\"Fisher (l'inventeur des plans d'exp\u00e9riences) con\u00e7ut un test \u00e0 partir de tasses de th\u00e9 pour apporter la preuve statistique de la diff\u00e9rence.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ellistat.com\/en\/the-proof-the-and-fisher-the-origin-of-experience-plans\/\" \/>\n<meta property=\"og:site_name\" content=\"Ellistat\" \/>\n<meta property=\"article:published_time\" content=\"2024-08-29T08:08:19+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-10-23T13:02:07+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ellistat.com\/wp-content\/uploads\/2024\/08\/Ronald-Aylmer-Fisher-729x1024-1.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"729\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Davy\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Davy\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/ellistat.com\\\/la-preuve-le-the-et-fisher-lorigine-des-plans-dexperience\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/ellistat.com\\\/la-preuve-le-the-et-fisher-lorigine-des-plans-dexperience\\\/\"},\"author\":{\"name\":\"Davy\",\"@id\":\"https:\\\/\\\/ellistat.com\\\/#\\\/schema\\\/person\\\/e2a04a9eb45bae5d885b534cbf70df8d\"},\"headline\":\"La preuve, le th\u00e9 et Fisher : l\u2019origine des plans d\u2019exp\u00e9rience\",\"datePublished\":\"2024-08-29T08:08:19+00:00\",\"dateModified\":\"2024-10-23T13:02:07+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/ellistat.com\\\/la-preuve-le-the-et-fisher-lorigine-des-plans-dexperience\\\/\"},\"wordCount\":282,\"image\":{\"@id\":\"https:\\\/\\\/ellistat.com\\\/la-preuve-le-the-et-fisher-lorigine-des-plans-dexperience\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/ellistat.com\\\/wp-content\\\/uploads\\\/2024\\\/08\\\/Ronald-Aylmer-Fisher-729x1024-1.jpeg\",\"articleSection\":[\"Data Analysis\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/ellistat.com\\\/la-preuve-le-the-et-fisher-lorigine-des-plans-dexperience\\\/\",\"url\":\"https:\\\/\\\/ellistat.com\\\/la-preuve-le-the-et-fisher-lorigine-des-plans-dexperience\\\/\",\"name\":\"La preuve, le th\u00e9 et Fisher : l\u2019origine des plans d\u2019exp\u00e9rience - 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