{"id":5840,"date":"2025-07-15T13:34:45","date_gmt":"2025-07-15T13:34:45","guid":{"rendered":"https:\/\/functiontranslator.com\/t-dist-rt\/"},"modified":"2021-02-26T10:04:30","modified_gmt":"2021-02-26T10:04:30","slug":"t-dist-rt","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/cs\/t-dist-rt\/","title":{"rendered":"T.DIST.RT"},"content":{"rendered":"<h2>Popis Funkce<\/h2>\n<p>Funkce <code>T.DIST.RT<\/code> se v Microsoft Excel a Google Sheets vyu\u017e\u00edv\u00e1 k vypo\u010d\u00edt\u00e1n\u00ed prav\u00e9 (komplement\u00e1rn\u00ed) \u010d\u00e1sti pravd\u011bpodobnosti t-rozlo\u017een\u00ed, co\u017e je kl\u00ed\u010dov\u00e9 p\u0159i testov\u00e1n\u00ed statistick\u00fdch hypot\u00e9z. V\u00fdsledek funkce ud\u00e1v\u00e1 pravd\u011bpodobnost, \u017ee hodnota statistiky t bude vy\u0161\u0161\u00ed ne\u017e zadan\u00e1 hodnota, za p\u0159edpokladu t-rozlo\u017een\u00ed s ur\u010dit\u00fdm po\u010dtem stup\u0148\u016f volnosti.<\/p>\n<h2>Syntaxe a P\u0159\u00edklady<\/h2>\n<p>Syntaxe funkce je n\u00e1sleduj\u00edc\u00ed:<\/p>\n<pre><code>T.DIST.RT(x, stupn\u011b_volnosti)<\/code><\/pre>\n<ul>\n<li><code>x<\/code> &#8211; Hodnota t-statistiky, pro ni\u017e po\u010d\u00edt\u00e1me pravd\u011bpodobnost.<\/li>\n<li><code>stupn\u011b_volnosti<\/code> &#8211; Po\u010det stup\u0148\u016f volnosti t-rozlo\u017een\u00ed, mus\u00ed b\u00fdt kladn\u00e9 cel\u00e9 \u010d\u00edslo.<\/li>\n<\/ul>\n<p>P\u0159\u00edklad pou\u017eit\u00ed v Excelu a Google Sheets:<\/p>\n<pre><code>=T.DIST.RT(2.5, 10)<\/code><\/pre>\n<p>Tento p\u0159\u00edklad vr\u00e1t\u00ed pravd\u011bpodobnost, \u017ee hodnota t-statistiky bude vy\u0161\u0161\u00ed ne\u017e 2.5 v t-rozlo\u017een\u00ed s 10 stupni volnosti.<\/p>\n<h2>Aplikace v praxi<\/h2>\n<h2>P\u0159\u00edklad 1: Testov\u00e1n\u00ed hypot\u00e9zy<\/h2>\n<p>P\u0159edpokl\u00e1dejme, \u017ee prov\u00e1d\u00edme studii, abychom zjistili, zda se pr\u016fm\u011brn\u00fd v\u011bk p\u0159i n\u00e1stupu do prvn\u00ed t\u0159\u00eddy li\u0161\u00ed od 6 let, se vzorkem dat od 15 respondent\u016f. Pr\u016fm\u011brn\u00fd v\u011bk ve vzorku je 6.5 let a vypo\u010dten\u00e1 t-statistika je 2.3.<\/p>\n<pre><code>=T.DIST.RT(2.3, 14)<\/code><\/pre>\n<p>V\u00fdsledek n\u00e1m uk\u00e1\u017ee pravd\u011bpodobnost z\u00edsk\u00e1n\u00ed t-statistiky alespo\u0148 2.3, pokud nulov\u00e1 hypot\u00e9za (pr\u016fm\u011brn\u00fd v\u011bk je pr\u00e1v\u011b 6 let) plat\u00ed. Tento v\u00fdsledek m\u016f\u017eeme pou\u017e\u00edt k rozhodnut\u00ed o zam\u00edtnut\u00ed \u010di p\u0159ijet\u00ed nulov\u00e9 hypot\u00e9zy.<\/p>\n<h2>P\u0159\u00edklad 2: Porovn\u00e1n\u00ed pr\u016fm\u011br\u016f dvou skupin<\/h2>\n<p>Uva\u017eujme dva t\u00fdmy pracovn\u00edk\u016f, u kter\u00fdch chceme zjistit, jestli mezi nimi existuje statisticky v\u00fdznamn\u00fd rozd\u00edl v pr\u016fm\u011brn\u00e9 produktivit\u011b. Vypo\u010dten\u00e1 t-statistika pro ob\u011b skupiny (skupina A a B) je 1.65 s 22 stupni volnosti.<\/p>\n<pre><code>=T.DIST.RT(1.65, 22)<\/code><\/pre>\n<p>Funkce n\u00e1m poskytne pravd\u011bpodobnost, \u017ee rozd\u00edl v produktivit\u011b je alespo\u0148 tak velk\u00fd, jak ukazuj\u00ed na\u0161e data, pokud by produktivita obou skupin byla stejn\u00e1 (nulov\u00e1 hypot\u00e9za). Toto je d\u016fle\u017eit\u00e9 pro rozhodnut\u00ed, zda jsou rozd\u00edly mezi t\u00fdmy statisticky v\u00fdznamn\u00e9 a zda je t\u0159eba p\u0159ijmout opat\u0159en\u00ed k narovn\u00e1n\u00ed t\u011bchto rozd\u00edl\u016f.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vr\u00e1t\u00ed hodnotu 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-5840","post","type-post","status-publish","format-standard","hentry","category-statisticke"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Funkce T.DIST.RT v Excelu: jak funguje, primjeri kori\u0161tenja formule<\/title>\n<meta name=\"description\" content=\"Opis funkcije T.DIST.RT u Excelu i Google tablicama. 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