{"id":5838,"date":"2025-07-15T13:34:45","date_gmt":"2025-07-15T13:34:45","guid":{"rendered":"https:\/\/functiontranslator.com\/t-dist\/"},"modified":"2021-02-26T10:04:28","modified_gmt":"2021-02-26T10:04:28","slug":"t-dist","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/cs\/t-dist\/","title":{"rendered":"T.DIST"},"content":{"rendered":"

Funkce T.DIST v Microsoft Excel a Google Sheets je vyu\u017e\u00edv\u00e1na k v\u00fdpo\u010dtu hodnoty pravd\u011bpodobnosti (tzv. p-hodnoty) v r\u00e1mci Studentova t-rozd\u011blen\u00ed. Toto je z\u00e1sadn\u00ed pro prov\u00e1d\u011bn\u00ed statistick\u00fdch test\u016f, zejm\u00e9na p\u0159i anal\u00fdze hypothesis s mal\u00fdmi datov\u00fdmi soubory.<\/p>\n

Popis a syntaxe funkce<\/h2>\n

Funkce T.DIST m\u00e1 n\u00e1sleduj\u00edc\u00ed syntaxi:<\/p>\n

=T.DIST(x, stupn\u011b_svobody, kumulativn\u00ed)<\/code><\/pre>\n
    \n
  • x<\/strong> – Hodnota t-statistiky, pro kterou chceme ur\u010dit pravd\u011bpodobnost.<\/li>\n
  • stupn\u011b_svobody<\/strong> – Po\u010det stup\u0148\u016f svobody rozd\u011blen\u00ed, co\u017e obvykle odpov\u00edd\u00e1 velikosti vzorku m\u00ednus jedna (N-1).<\/li>\n
  • kumulativn\u00ed<\/strong> – Logick\u00e1 hodnota, kter\u00e1 specifikuje, zda se m\u00e1 vr\u00e1tit kumulativn\u00ed distribu\u010dn\u00ed funkce (TRUE) nebo funkce hustoty pravd\u011bpodobnosti (FALSE).<\/li>\n<\/ul>\n
    P\u0159\u00edklad:<\/strong> Pokud m\u00e1me t-statistiku -2.365 a chceme zjistit pravd\u011bpodobnost pro 15 stup\u0148\u016f svobody.<\/p>\n
    =T.DIST(-2.365, 15, TRUE)<\/code><\/pre>\n
    Tento vzorec vr\u00e1t\u00ed kumulativn\u00ed pravd\u011bpodobnost, \u017ee sk\u00f3re testu bude men\u0161\u00ed nebo rovno -2.365 pro zadan\u00fd po\u010det stup\u0148\u016f svobody.<\/p>\n
    P\u0159\u00edklady z praxe<\/h2>\n
    N\u00e1sleduj\u00ed p\u0159\u00edklady ilustruj\u00edc\u00ed praktick\u00e9 vyu\u017eit\u00ed funkce T.DIST.<\/p>\n
    Hodnocen\u00ed v\u00fdsledk\u016f test\u016f<\/h2>\n
    P\u0159edstavte si, \u017ee jste u\u010ditel a pot\u0159ebujete statisticky vyhodnotit v\u00fdsledky test\u016f t\u0159\u00eddy s 20 studenty. Pr\u016fm\u011brn\u00e9 sk\u00f3re testu je 75 bod\u016f, se standardn\u00ed odchylkou 10 bod\u016f. Jeden ze student\u016f z\u00edskal 55 bod\u016f a vy ho chcete statisticky posoudit.<\/p>\n
    Nejprve ur\u010d\u00edme t-statistiku:<\/p>\n
    t = (x - \u03bc) \/ (\u03c3\/\u221an) t = (55 - 75) \/ (10\/\u221a20) t = -8.944<\/code><\/pre>\n
    Nyn\u00ed aplikujeme T.DIST k v\u00fdpo\u010dtu p-hodnoty:<\/p>\n
    =T.DIST(-8.944, 19, TRUE)<\/code><\/pre>\n
    Tato hodnota poskytne kumulativn\u00ed pravd\u011bpodobnost dosa\u017een\u00ed dan\u00e9ho nebo extr\u00e9mn\u011bj\u0161\u00edho sk\u00f3re, co\u017e n\u00e1m pom\u016f\u017ee rozhodnout, zda je sk\u00f3re studenta statisticky v\u00fdrazn\u011b odli\u0161n\u00e9 od pr\u016fm\u011bru t\u0159\u00eddy.<\/p>\n
    Anal\u00fdza v\u00fdzkumn\u00fdch dat<\/h2>\n
    V r\u00e1mci v\u00fdzkumu se m\u016f\u017ee vyno\u0159it pot\u0159eba statisticky porovnat dv\u011b nez\u00e1visl\u00e9 soubory dat s velikostmi nap\u0159\u00edklad 15 a 18. P\u0159edpokl\u00e1d\u00e1me, \u017ee jsme obdr\u017eeli t-statistiku 2.345. Zaj\u00edmav\u00e9 je, jak nepravd\u011bpodobn\u00e9 je dos\u00e1hnout takov\u00e9to hodnoty t nebo vy\u0161\u0161\u00ed, pokud je nulov\u00e1 hypot\u00e9za pravdiv\u00e1 (\u017e\u00e1dn\u00fd statisticky v\u00fdznamn\u00fd rozd\u00edl mezi pr\u016fm\u011bry soubor\u016f).<\/p>\n
    =T.DIST(2.345, 15 + 18 - 2, TRUE)<\/code><\/pre>\n
    Zde velikost vzork\u016f 15 a 18 m\u00ednus dva reprezentuje po\u010det stup\u0148\u016f svobody. Tato funkce poskytuje pravd\u011bpodobnost, kter\u00e1 m\u016f\u017ee b\u00fdt interpretov\u00e1na v kontextu statistick\u00e9 signifikance.<\/p>\n","protected":false},"excerpt":{"rendered":"
    Vr\u00e1t\u00ed procentu\u00e1ln\u00ed body (pravd\u011bpodobnost) pro distribu\u010dn\u00ed funkci Studentova t-rozd\u011blen\u00ed<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[287],"tags":[],"class_list":["post-5838","post","type-post","status-publish","format-standard","hentry","category-statisticke"],"acf":[],"yoast_head":"\nFunkce T.DIST v Excelu: jak funguje, primjeri kori\u0161tenja formule<\/title>\n<meta name=\"description\" content=\"Opis funkcije T.DIST u Excelu i Google tablicama. Sintaksa, parametri funkcije te prakti\u010dni primjeri.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/functiontranslator.com\/cs\/t-dist\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Funkce T.DIST v Excelu: jak funguje, primjeri kori\u0161tenja formule\" \/>\n<meta property=\"og:description\" content=\"Opis funkcije T.DIST u Excelu i Google tablicama. Sintaksa, parametri funkcije te prakti\u010dni primjeri.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/functiontranslator.com\/cs\/t-dist\/\" \/>\n<meta property=\"og:site_name\" content=\"Function Translator\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-15T13:34:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-02-26T10:04:28+00:00\" \/>\n<meta name=\"author\" content=\"glavadmin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Funkce T.DIST v Excelu: jak funguje, primjeri kori\u0161tenja formule\" \/>\n<meta name=\"twitter:label1\" content=\"Napsal(a)\" \/>\n\t<meta name=\"twitter:data1\" content=\"glavadmin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Odhadovan\u00e1 doba \u010dten\u00ed\" \/>\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:\/\/functiontranslator.com\/cs\/t-dist\/\",\"url\":\"https:\/\/functiontranslator.com\/cs\/t-dist\/\",\"name\":\"Funkce T.DIST v Excelu: jak funguje, primjeri kori\u0161tenja formule\",\"isPartOf\":{\"@id\":\"https:\/\/functiontranslator.com\/no\/#website\"},\"datePublished\":\"2025-07-15T13:34:45+00:00\",\"dateModified\":\"2021-02-26T10:04:28+00:00\",\"author\":{\"@id\":\"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/87663eece497ca58643166ecb09f1389\"},\"description\":\"Opis funkcije T.DIST u Excelu i Google tablicama. Sintaksa, parametri funkcije te prakti\u010dni primjeri.\",\"breadcrumb\":{\"@id\":\"https:\/\/functiontranslator.com\/cs\/t-dist\/#breadcrumb\"},\"inLanguage\":\"cs\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/functiontranslator.com\/cs\/t-dist\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/functiontranslator.com\/cs\/t-dist\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Funkce aplikace Excel\",\"item\":\"https:\/\/functiontranslator.com\/cs\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Statistick\u00e9\",\"item\":\"https:\/\/functiontranslator.com\/cs\/statisticke\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"T.DIST\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/functiontranslator.com\/no\/#website\",\"url\":\"https:\/\/functiontranslator.com\/no\/\",\"name\":\"Function Translator\",\"description\":\"Excel function translator\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/functiontranslator.com\/no\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"cs\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/87663eece497ca58643166ecb09f1389\",\"name\":\"glavadmin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"cs\",\"@id\":\"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/03ccd9347c5339db75deede5a8c5b2bf1d40e0bce26a5251fcaac6331d381db8?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/03ccd9347c5339db75deede5a8c5b2bf1d40e0bce26a5251fcaac6331d381db8?s=96&d=mm&r=g\",\"caption\":\"glavadmin\"},\"sameAs\":[\"https:\/\/functiontranslator.com\"],\"url\":\"https:\/\/functiontranslator.com\/cs\/author\/glavadmin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Funkce T.DIST v Excelu: jak funguje, primjeri kori\u0161tenja formule","description":"Opis funkcije T.DIST u Excelu i Google tablicama. Sintaksa, parametri funkcije te prakti\u010dni primjeri.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/functiontranslator.com\/cs\/t-dist\/","og_locale":"cs_CZ","og_type":"article","og_title":"Funkce T.DIST v Excelu: jak funguje, primjeri kori\u0161tenja formule","og_description":"Opis funkcije T.DIST u Excelu i Google tablicama. Sintaksa, parametri funkcije te prakti\u010dni primjeri.","og_url":"https:\/\/functiontranslator.com\/cs\/t-dist\/","og_site_name":"Function Translator","article_published_time":"2025-07-15T13:34:45+00:00","article_modified_time":"2021-02-26T10:04:28+00:00","author":"glavadmin","twitter_card":"summary_large_image","twitter_title":"Funkce T.DIST v Excelu: jak funguje, primjeri kori\u0161tenja formule","twitter_misc":{"Napsal(a)":"glavadmin","Odhadovan\u00e1 doba \u010dten\u00ed":"2 minuty"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/functiontranslator.com\/cs\/t-dist\/","url":"https:\/\/functiontranslator.com\/cs\/t-dist\/","name":"Funkce T.DIST v Excelu: jak funguje, primjeri kori\u0161tenja formule","isPartOf":{"@id":"https:\/\/functiontranslator.com\/no\/#website"},"datePublished":"2025-07-15T13:34:45+00:00","dateModified":"2021-02-26T10:04:28+00:00","author":{"@id":"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/87663eece497ca58643166ecb09f1389"},"description":"Opis funkcije T.DIST u Excelu i Google tablicama. Sintaksa, parametri funkcije te prakti\u010dni primjeri.","breadcrumb":{"@id":"https:\/\/functiontranslator.com\/cs\/t-dist\/#breadcrumb"},"inLanguage":"cs","potentialAction":[{"@type":"ReadAction","target":["https:\/\/functiontranslator.com\/cs\/t-dist\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/functiontranslator.com\/cs\/t-dist\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Funkce aplikace Excel","item":"https:\/\/functiontranslator.com\/cs\/"},{"@type":"ListItem","position":2,"name":"Statistick\u00e9","item":"https:\/\/functiontranslator.com\/cs\/statisticke\/"},{"@type":"ListItem","position":3,"name":"T.DIST"}]},{"@type":"WebSite","@id":"https:\/\/functiontranslator.com\/no\/#website","url":"https:\/\/functiontranslator.com\/no\/","name":"Function Translator","description":"Excel function translator","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/functiontranslator.com\/no\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"cs"},{"@type":"Person","@id":"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/87663eece497ca58643166ecb09f1389","name":"glavadmin","image":{"@type":"ImageObject","inLanguage":"cs","@id":"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/03ccd9347c5339db75deede5a8c5b2bf1d40e0bce26a5251fcaac6331d381db8?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/03ccd9347c5339db75deede5a8c5b2bf1d40e0bce26a5251fcaac6331d381db8?s=96&d=mm&r=g","caption":"glavadmin"},"sameAs":["https:\/\/functiontranslator.com"],"url":"https:\/\/functiontranslator.com\/cs\/author\/glavadmin\/"}]}},"_links":{"self":[{"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/posts\/5838","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/comments?post=5838"}],"version-history":[{"count":2,"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/posts\/5838\/revisions"}],"predecessor-version":[{"id":30972,"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/posts\/5838\/revisions\/30972"}],"wp:attachment":[{"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/media?parent=5838"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/categories?post=5838"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/tags?post=5838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}