{"id":5464,"date":"2025-07-15T13:34:44","date_gmt":"2025-07-15T13:34:44","guid":{"rendered":"https:\/\/functiontranslator.com\/chiinv\/"},"modified":"2021-02-26T09:51:15","modified_gmt":"2021-02-26T09:51:15","slug":"chiinv","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/cs\/chiinv\/","title":{"rendered":"CHIINV"},"content":{"rendered":"<h2>\u00davod do funkce pro inverzi ch\u00ed-kvadr\u00e1t rozd\u011blen\u00ed<\/h2>\n<p>Funkce CHIINV umo\u017e\u0148uje ur\u010dit kritick\u00e9 hodnoty ch\u00ed-kvadr\u00e1t rozd\u011blen\u00ed, co\u017e je p\u0159\u00ednosn\u00e9 p\u0159edev\u0161\u00edm ve statistice pro posuzov\u00e1n\u00ed, zda existuje shoda mezi o\u010dek\u00e1van\u00fdmi a pozorovan\u00fdmi frekvencemi. Tuto funkci lze vyu\u017e\u00edt tanto v MS Excel, tak i v Google Sheets pro anal\u00fdzy kontingen\u010dn\u00edch tabulek a dal\u0161\u00ed shodnostn\u00ed testy.<\/p>\n<h2>Syntaxe a pou\u017eit\u00ed<\/h2>\n<p> <code>CHIINV(pravd\u011bpodobnost, stupn\u011b_volnosti)<\/code> <\/p>\n<ul>\n<li><b>pravd\u011bpodobnost<\/b>: Hodnota pravd\u011bpodobnosti, pro kterou se hled\u00e1 ch\u00ed-kvadr\u00e1tov\u00e1 hodnota. Tato hodnota by m\u011bla b\u00fdt v rozmez\u00ed od 0 do 1.<\/li>\n<li><b>stupn\u011b_volnosti<\/b>: Po\u010det stup\u0148\u016f volnosti, kter\u00e9 m\u00e1 ch\u00ed-kvadr\u00e1tov\u00e9 rozd\u011blen\u00ed. Mus\u00ed to b\u00fdt kladn\u00e9 cel\u00e9 \u010d\u00edslo.<\/li>\n<\/ul>\n<pre>P\u0159\u00edklad: Pro ur\u010den\u00ed kritick\u00e9 hodnoty ch\u00ed-kvadr\u00e1tu p\u0159i 95% konfiden\u010dn\u00ed \u00farovni (0.05 pravd\u011bpodobnost) a 10 stupn\u00edch volnosti, pou\u017eijeme: <code>CHIINV(0.05, 10)<\/code><\/pre>\n<\/p>\n<h2>P\u0159\u00edkladov\u00e9 sc\u00e9n\u00e1\u0159e pou\u017eit\u00ed<\/h2>\n<h3>Pou\u017eit\u00ed v testu nez\u00e1vislosti<\/h3>\n<p>P\u0159i prov\u00e1d\u011bn\u00ed testu nez\u00e1vislosti s daty z\u00edskan\u00fdmi z dotazn\u00edku obsahuj\u00edc\u00edho dva kategorick\u00e9 prom\u011bnn\u00e9 \u2013 pohlav\u00ed (mu\u017e, \u017eena) a vysoko\u0161kolsk\u00e9 vzd\u011bl\u00e1n\u00ed (ano, ne) \u2013 m\u016f\u017eeme pou\u017e\u00edt ch\u00ed-kvadr\u00e1t test k zji\u0161t\u011bn\u00ed, zda mezi prom\u011bnn\u00fdmi existuje statisticky v\u00fdznamn\u00e1 souvislost. U tabulky 2&#215;2, tedy s 3 stupni volnosti, pou\u017eijeme funkci CHIINV pro zji\u0161t\u011bn\u00ed kritick\u00e9 hodnoty pro 95% konfiden\u010dn\u00ed \u00farove\u0148: <\/p>\n<pre><code>CHIINV(0.05, 3)<\/code><\/pre>\n<p> Tento v\u00fdsledek n\u00e1m uk\u00e1\u017ee, nad jakou hodnotu se mus\u00ed na\u0161e sk\u00f3re ch\u00ed-kvadr\u00e1t testu pohybovat, aby byla rozd\u00edly mezi skupinami pova\u017eov\u00e1ny za statisticky v\u00fdznamn\u00e9.<\/p>\n<h3>P\u0159\u00edpad profilov\u00e1n\u00ed z\u00e1kazn\u00edk\u016f<\/h3>\n<p>Ch\u00ed-kvadr\u00e1t test m\u016f\u017eeme tak\u00e9 vyu\u017e\u00edt pro anal\u00fdzu spokojenosti z\u00e1kazn\u00edk\u016f na z\u00e1klad\u011b dat o hodnocen\u00ed produkt\u016f nebo slu\u017eeb r\u016fzn\u00fdmi v\u011bkov\u00fdmi skupinami. V p\u0159\u00edpad\u011b 4 v\u011bkov\u00fdch kategori\u00ed a 3 stupn\u00edch volnosti ur\u010d\u00edme 99% konfiden\u010dn\u00ed \u00farove\u0148 takto: <\/p>\n<pre><code>CHIINV(0.01, 3)<\/code><\/pre>\n<p> Tento v\u00fdpo\u010det n\u00e1m umo\u017en\u00ed rozhodnout, zda hodnocen\u00ed odli\u0161n\u00e9ho chov\u00e1n\u00ed v\u011bkov\u00fdch skupin p\u0159edstavuje v\u00fdznamn\u00fd n\u00e1lez, nebo jde o n\u00e1hodn\u00fd jev.<\/p>\n<h2>Z\u00e1v\u011br<\/h2>\n<p>Funkce CHIINV je nezbytn\u00e1 pro ka\u017ed\u00e9ho, kdo prov\u00e1d\u00ed statistickou anal\u00fdzu v Excelu nebo Google Sheets a pot\u0159ebuje ov\u011b\u0159it, zda jsou zji\u0161t\u011bn\u00e9 hodnoty statisticky v\u00fdznamn\u00e9 v r\u00e1mci o\u010dek\u00e1van\u00fdch rozd\u011blen\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vr\u00e1t\u00ed hodnotu funkce inverzn\u00ed k distribu\u010dn\u00ed funkci jednostrann\u00e9 pravd\u011bpodobnosti rozd\u011blen\u00ed ch\u00ed-kvadr\u00e1t<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[289],"tags":[],"class_list":["post-5464","post","type-post","status-publish","format-standard","hentry","category-kompatibilita"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Funkce CHIINV v Excelu: jak funguje, primjeri kori\u0161tenja formule<\/title>\n<meta name=\"description\" content=\"Opis funkcije CHIINV u Excelu i Google tablicama. 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