{"id":346,"date":"2020-02-12T10:03:32","date_gmt":"2020-02-12T09:03:32","guid":{"rendered":"http:\/\/estatistika.ku.sk\/?page_id=346"},"modified":"2022-02-17T17:35:25","modified_gmt":"2022-02-17T16:35:25","slug":"priklad-mann-whitney-u-test","status":"publish","type":"page","link":"https:\/\/estatistika.ku.sk\/index.php\/induktivna-statistika\/komparacna-analyza\/komparacia-suborov-podla-ordinalnej-premennej\/priklad-mann-whitney-u-test\/","title":{"rendered":"Mann-Whitney U-test"},"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 <strong>v medi\u00e1noch (priemeroch poradia) DVOCH <a href=\"http:\/\/estatistika.ku.sk\/index.php\/vyber-vyskumnej-vzorky\/zavisly-a-nezavisly-vyber\/\">nez\u00e1visl\u00fdch<\/a> v\u00fdskumn\u00fdch s\u00faborov.<\/strong><\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Testuje sa, \u010di s\u00fa rozdiely medzi dvoma skupinami v ordin\u00e1lnej premennej signifikantn\u00e9.<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">Je to neparametrick\u00e1 obdoba Studentovho t-testu pre dva nez\u00e1visl\u00e9 v\u00fdbery.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\"><strong>Pr\u00edklad \u010d. 1<\/strong>: Cie\u013eom anal\u00fdzy je zisti\u0165, \u010di existuj\u00fa rozdiely v kvalite \u017eivota pacientov vo f\u00e1ze lie\u010dby a dolie\u010dovania.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">H<sub>0<\/sub>:\u00a0 V\u00a0kvalite \u017eivota pacientov vo f\u00e1ze lie\u010dby a dolie\u010dovania neexistuje signifikantn\u00fd rozdiel.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">H<sub>A<\/sub>:\u00a0V\u00a0kvalite \u017eivota pacientov vo f\u00e1ze lie\u010dby a dolie\u010dovania existuje signifikantn\u00fd rozdiel.\u00a0<\/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=\"list-style-type: square; text-align: justify;\">\n<li><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">kvalita \u017eivota &#8211; 1\u00a0= ve\u013emi zl\u00e1, 2 = zl\u00e1, 3 = ani dobr\u00e1\/ani zl\u00e1, 4 = dobr\u00e1, 5 = ve\u013emi dobr\u00e1<\/span><\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">f\u00e1za: 1\u00a0= lie\u010dby, 2 = dolie\u010dovania<\/span><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">* Jedn\u00e1 sa o v\u00fdskumn\u00fd s\u00fabor pacientov s diagn\u00f3zou &#8222;Patologick\u00e9 hr\u00e1\u010dstvo&#8220; , ktor\u00ed absolvovali lie\u010dbu v lie\u010debniach na Slovensku.<\/span><\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 100%; text-align: center;\"><strong><span style=\"font-family: helvetica, arial, sans-serif;\">Videon\u00e1vod: SPSS<\/span><\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 100%;\"><iframe title=\"Mann Whitney U test\" width=\"580\" height=\"326\" src=\"https:\/\/www.youtube.com\/embed\/3fz-Aos60DY?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 style=\"font-size: 21px; text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt; color: #993366;\"><strong>Sk\u00fa\u0161obn\u00fd pr\u00edklad:<\/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 existuj\u00fa rozdiely (diferenci\u00e1cie) vo frekvencii nav\u0161tevovania diskot\u00e9k medzi chlapcami a diev\u010datami.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">H<sub>0<\/sub>:\u00a0 Vo frekvencii nav\u0161tevovania diskot\u00e9k\u00a0medzi chlapcami a diev\u010datami neexistuje signifikantn\u00fd rozdiel.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">H<sub>A<\/sub>:\u00a0Vo frekvencii nav\u0161tevovania diskot\u00e9k\u00a0medzi chlapcami a diev\u010datami existuje signifikantn\u00fd rozdiel.<\/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=\"list-style-type: square; text-align: justify;\">\n<li style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">frekvencia chodenia na diskot\u00e9ky\/z\u00e1bavy: 0 =\u00a0 <b>v\u00f4bec nie<\/b>, 1 = <b>raz za pol roka<\/b>, 2 = <b>raz za mesiac<\/b>, 3 = <b>viackr\u00e1t mesa\u010dne, <\/b>4 <b>=\u00a01 x t\u00fd\u017edenne, <\/b>5<b> viackr\u00e1t t\u00fd\u017edenne<\/b><\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-family: helvetica, arial, sans-serif; font-size: 14pt;\">pohlavie: <b>diev\u010da\u00a0<\/b>= 1, <b>chlapec\u00a0<\/b>= 2<\/span><\/li>\n<\/ul>\n<table style=\"border-collapse: collapse; width: 96.0345%; height: 81px;\">\n<tbody>\n<tr style=\"height: 41px;\">\n<td style=\"width: 103.276%; 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: 1.72414%; height: 41px; text-align: center;\"><\/td>\n<\/tr>\n<tr style=\"height: 40px;\">\n<td style=\"width: 103.276%; 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_ordinalnapremenna.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: 1.72414%; height: 40px;\"><\/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-ordinalnej-premennej\/priklad-mann-whitney-u-test\/\" rel=\"noamphtml\" class = \"hdq_quiz_start hdq_button button\" role = \"button\">Otvori\u0165 overenie v\u00fdpo\u010dtu<\/a><\/div><\/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 medi\u00e1noch (priemeroch poradia) DVOCH nez\u00e1visl\u00fdch v\u00fdskumn\u00fdch s\u00faborov. Testuje sa, \u010di s\u00fa rozdiely medzi dvoma skupinami v ordin\u00e1lnej premennej signifikantn\u00e9. Je to neparametrick\u00e1 obdoba Studentovho t-testu pre dva nez\u00e1visl\u00e9 v\u00fdbery. Pr\u00edklad \u010d. 1: Cie\u013eom anal\u00fdzy je zisti\u0165, \u010di existuj\u00fa rozdiely v kvalite \u017eivota pacientov vo f\u00e1ze lie\u010dby a dolie\u010dovania.\u00a0 H0:\u00a0 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":341,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"templates\/template-full-width.php","meta":{"footnotes":""},"class_list":["post-346","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/pages\/346","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=346"}],"version-history":[{"count":59,"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/pages\/346\/revisions"}],"predecessor-version":[{"id":2179,"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/pages\/346\/revisions\/2179"}],"up":[{"embeddable":true,"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/pages\/341"}],"wp:attachment":[{"href":"https:\/\/estatistika.ku.sk\/index.php\/wp-json\/wp\/v2\/media?parent=346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}