{"id":400,"date":"2020-03-19T10:57:56","date_gmt":"2020-03-19T09:57:56","guid":{"rendered":"http:\/\/estatistika.ku.sk\/?page_id=400"},"modified":"2022-02-17T17:37:16","modified_gmt":"2022-02-17T16:37:16","slug":"priklad-studentov-t-test-pre-dva-nezavisle-vybery-2","status":"publish","type":"page","link":"https:\/\/estatistika.ku.sk\/index.php\/induktivna-statistika\/komparacna-analyza\/komparacia-suborov-podla-kardinalnej-premennej-2\/priklad-studentov-t-test-pre-dva-nezavisle-vybery-2\/","title":{"rendered":"Studentov t-test pre dva nez\u00e1visl\u00e9 v\u00fdbery"},"content":{"rendered":"<ul>\n<li style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Pou\u017e\u00edva sa na sk\u00famanie rozdielov v stredn\u00fdch hodnot\u00e1ch (priemeroch)\u00a0<strong>dvoch <a href=\"http:\/\/estatistika.ku.sk\/index.php\/vyber-vyskumnej-vzorky\/zavisly-a-nezavisly-vyber\/\">nez\u00e1visl\u00fdch v\u00fdberov<\/a><\/strong>.<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Predpoklad\u00e1 rovnos\u0165 rozptylov dvoch v\u00fdberov\u00fdch s\u00faborov, z ktor\u00fdch vzorky poch\u00e1dzaj\u00fa = homosketasticita, o rovnosti rozptylov rozhodujeme na z\u00e1klade v\u00fdsledku testu rovnosti rozptylov &#8211; Levenov test (je s\u00fa\u010das\u0165ou v\u00fdsledkov\u00e9ho okna v SPSS).<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">v programe SPSS &#8211; Independent-Samples T Test<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/estatistika.ku.sk\/wp-content\/uploads\/2021\/01\/levenov-test.jpg\" alt=\"\" width=\"620\" height=\"228\" \/><strong style=\"text-align: justify;\">Pr\u00edklad \u010d. 1<\/strong>: Cie\u013eom anal\u00fdzy je zisti\u0165, \u010di existuje rozdiel v osobnostnej charakteristike &#8222;pr\u00edvetivos\u0165&#8220; vzh\u013eadom na pohlavie ved\u00facich pracovn\u00edkov soci\u00e1lnych slu\u017eieb.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">H<sub>0<\/sub>:\u00a0 Predpoklad\u00e1me, \u017ee neexistuje \u0161tatisticky v\u00fdznamn\u00fd rozdiel v charakteristike pr\u00edvetivos\u0165 vzh\u013eadom na pohlavie.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">H<sub>A<\/sub>:\u00a0Predpoklad\u00e1me, \u017ee existuje \u0161tatisticky v\u00fdznamn\u00fd rozdiel v charakteristike pr\u00edvetivos\u0165 vzh\u013eadom na pohlavie.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><strong>Operacionaliz\u00e1cia<\/strong>:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">pohlavie-ved\u00faci &#8211; 1 = <strong>mu\u017e<\/strong>, 2 = <strong>\u017eena<\/strong><\/span><\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">pr\u00edvetivos\u0165 &#8211; <strong>sk\u00f3re<\/strong> v osobnostnom dotazn\u00edku<\/span><\/li>\n<\/ul>\n<table style=\"border-collapse: collapse; width: 100%; height: 80px;\">\n<tbody>\n<tr style=\"height: 40px;\">\n<td style=\"width: 50%; height: 40px; text-align: center;\"><span style=\"font-family: helvetica, arial, sans-serif;\"><strong>Videon\u00e1vod: SPSS<\/strong><\/span><\/td>\n<td style=\"width: 50%; height: 40px; text-align: center;\"><strong><span style=\"font-family: helvetica, arial, sans-serif;\">Videon\u00e1vod: EXCEL<\/span><\/strong><\/td>\n<\/tr>\n<tr style=\"height: 40px;\">\n<td style=\"width: 50%; height: 40px;\"><iframe title=\"Studentov t-test pre dva nez\u00e1visl\u00e9 v\u00fdbery - SPSS\" width=\"580\" height=\"326\" src=\"https:\/\/www.youtube.com\/embed\/dPZQGG0vqUk?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/td>\n<td style=\"width: 50%; height: 40px;\"><iframe title=\"Studentov t-test pre dva nez\u00e1visl\u00e9 v\u00fdbery - Excel\" width=\"580\" height=\"326\" src=\"https:\/\/www.youtube.com\/embed\/wf59TqjJvTo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p style=\"font-size: 21px; text-align: justify;\"><span style=\"color: #800080;\"><strong><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Sk\u00fa\u0161obn\u00fd pr\u00edklad:<\/span><\/strong><\/span><\/p>\n<blockquote style=\"font-size: 21px; text-align: left; color: #000000;\">\n<p style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Pr\u00edklad \u010d. 2 si m\u00f4\u017eete sk\u00fasi\u0165 sami vypo\u010d\u00edta\u0165. Ni\u017e\u0161ie n\u00e1jdete pr\u00edslu\u0161n\u00fa d\u00e1tov\u00fa maticu v SPSS i v Exceli, s\u00fabory si m\u00f4\u017eete stiahnu\u0165. To \u010di ste zadanie spr\u00e1vne vypo\u010d\u00edtali si m\u00f4\u017eete overi\u0165, ak v\u00e1\u0161 v\u00fdsledok vlo\u017e\u00edte do v\u00fdsledkov\u00e9ho okna, ktor\u00e9 taktie\u017e n\u00e1jdete ni\u017e\u0161ie pod zadan\u00edm pr\u00edkladu.<\/span><\/p>\n<\/blockquote>\n<p style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><strong>Pr\u00edklad \u010d. 2<\/strong>: Cie\u013eom anal\u00fdzy je zisti\u0165, \u010di existuje rozdiel v priemernom po\u010dte bodov z vedomostn\u00e9ho testu vzh\u013eadom na pohlavie.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">H<sub>0<\/sub>:\u00a0 Predpoklad\u00e1me, \u017ee neexistuje \u0161tatisticky v\u00fdznamn\u00fd rozdiel v po\u010dte bodov v teste vzh\u013eadom na pohlavie.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">H<sub>A<\/sub>:\u00a0Predpoklad\u00e1me, \u017ee existuje \u0161tatisticky v\u00fdznamn\u00fd rozdiel v po\u010dte bodov v teste vzh\u013eadom na pohlavie.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><strong>Operacionaliz\u00e1cia<\/strong>:<\/span><\/p>\n<ul style=\"text-align: justify;\">\n<li style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">pohlavie-\u017eiaci &#8211; 1 = <strong>chlapec<\/strong>, 2 = <strong>diev\u010da<\/strong><\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">po\u010det bodov vo vedomostnom teste<\/span><\/li>\n<\/ul>\n<table style=\"border-collapse: collapse; width: 100%; height: 81px;\">\n<tbody>\n<tr style=\"height: 41px;\">\n<td style=\"width: 50%; height: 41px; text-align: center;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"><strong>D\u00e1tov\u00e1 matica IBM SPSS na stiahnutie<\/strong><\/span><\/td>\n<td style=\"width: 50%; height: 41px; text-align: center;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\"><strong>D\u00e1tov\u00e1 matica MS EXCEL na stiahnutie<\/strong><\/span><\/td>\n<\/tr>\n<tr style=\"height: 40px;\">\n<td style=\"width: 50%; height: 40px;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><a href=\"http:\/\/estatistika.ku.sk\/wp-content\/uploads\/2022\/01\/komparacnaanalyza_kardinalna-premenna.zip\"><img decoding=\"async\" class=\"alignnone wp-image-980\" src=\"http:\/\/estatistika.ku.sk\/wp-content\/uploads\/2020\/01\/cropped-logoIBM-SPSS.png\" alt=\"\" width=\"116\" height=\"94\" \/><\/a><\/span><\/td>\n<td style=\"width: 50%; height: 40px;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><a href=\"http:\/\/estatistika.ku.sk\/wp-content\/uploads\/2022\/01\/komparacna-analyza-_-kardinalna-premenna.xlsx\"><img decoding=\"async\" class=\"alignnone wp-image-105\" src=\"http:\/\/estatistika.ku.sk\/wp-content\/uploads\/2020\/01\/782px-Microsoft_Excel_2013_logo.svg_.png\" alt=\"\" width=\"102\" height=\"100\" srcset=\"https:\/\/estatistika.ku.sk\/wp-content\/uploads\/2020\/01\/782px-Microsoft_Excel_2013_logo.svg_.png 782w, https:\/\/estatistika.ku.sk\/wp-content\/uploads\/2020\/01\/782px-Microsoft_Excel_2013_logo.svg_-300x295.png 300w, https:\/\/estatistika.ku.sk\/wp-content\/uploads\/2020\/01\/782px-Microsoft_Excel_2013_logo.svg_-768x754.png 768w\" sizes=\"(max-width: 102px) 100vw, 102px\" \/><\/a><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: center;\"><strong><span style=\"font-family: helvetica, arial, sans-serif;\">Overte si \u010di ste pr\u00edklad vypo\u010d\u00edtali spr\u00e1vne<\/span><\/strong><br \/>\n<span style=\"font-family: helvetica, arial, sans-serif; font-size: 12pt;\">(v pr\u00edpade spr\u00e1vneho v\u00fdpo\u010dtu je v\u00fdsledok v zelenom r\u00e1m\u010deku)<\/span><\/p>\n<p style=\"text-align: center;\"><div class = \"hdq_quiz_wrapper\"><a href = \"https:\/\/estatistika.ku.sk\/index.php\/induktivna-statistika\/komparacna-analyza\/komparacia-suborov-podla-kardinalnej-premennej-2\/priklad-studentov-t-test-pre-dva-nezavisle-vybery-2\/\" rel=\"noamphtml\" class = \"hdq_quiz_start hdq_button button\" role = \"button\">Otvori\u0165 overenie v\u00fdpo\u010dtu<\/a><\/div><\/p>\n<p>&nbsp;<\/p>\n<blockquote>\n<p style=\"text-align: justify;\"><span style=\"font-size: 12pt;\">! vpisujte p-hodnotu <strong>zaokr\u00fahlen\u00fa<\/strong> na 3-desatinn\u00e9 miesta.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 12pt;\">! vpisujte v\u00fdsledok i\u00a0<strong>s nulou pred \u010diarkou<\/strong>, napr. 0,005 (v SPSS je v\u00fdsledok vo forme z\u00e1pisu .005).<\/span><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Pou\u017e\u00edva sa na sk\u00famanie rozdielov v stredn\u00fdch hodnot\u00e1ch (priemeroch)\u00a0dvoch nez\u00e1visl\u00fdch v\u00fdberov. Predpoklad\u00e1 rovnos\u0165 rozptylov dvoch v\u00fdberov\u00fdch s\u00faborov, z ktor\u00fdch vzorky poch\u00e1dzaj\u00fa = homosketasticita, o rovnosti rozptylov rozhodujeme na z\u00e1klade v\u00fdsledku testu rovnosti rozptylov &#8211; Levenov test (je s\u00fa\u010das\u0165ou v\u00fdsledkov\u00e9ho okna v SPSS). v programe SPSS &#8211; Independent-Samples T Test Pr\u00edklad \u010d. 1: Cie\u013eom anal\u00fdzy je [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":388,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"templates\/template-full-width.php","meta":{"footnotes":""},"class_list":["post-400","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/pages\/400","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/comments?post=400"}],"version-history":[{"count":56,"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/pages\/400\/revisions"}],"predecessor-version":[{"id":2107,"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/pages\/400\/revisions\/2107"}],"up":[{"embeddable":true,"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/pages\/388"}],"wp:attachment":[{"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/media?parent=400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}