{"id":23720,"date":"2025-11-28T09:01:58","date_gmt":"2025-11-28T00:01:58","guid":{"rendered":"https:\/\/blog.agentsoft.co.kr\/index.php\/2025\/11\/28\/23720\/"},"modified":"2025-11-28T09:01:58","modified_gmt":"2025-11-28T00:01:58","slug":"t%ea%b2%80%ec%a6%9d-%eb%b9%84%eb%aa%a8%ec%88%98-%ea%b2%80%ec%a6%9d-%ec%9d%b4%eb%a1%a0-%ec%8b%ac%eb%a6%ac%ed%95%99","status":"publish","type":"post","link":"https:\/\/blog.agentsoft.co.kr\/index.php\/2025\/11\/28\/23720\/","title":{"rendered":"T\uac80\uc99d, \ube44\ubaa8\uc218 \uac80\uc99d \uc774\ub860 (\uc2ec\ub9ac\ud559)"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/image4.happycampus.com\/Production\/thumb212\/2024\/03\/20\/data29557375-0001.jpg\"><img decoding=\"async\" src=\"https:\/\/image4.happycampus.com\/Production\/thumb212\/2024\/03\/20\/data29557375-0002.jpg\"><\/p>\n<p><strong>\ubaa9\ucc28<\/strong><\/p>\n<p>I. t \uac80\uc99d<br \/>\n1.  t \uac80\uc99d\uc758 \ub17c\ub9ac &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;. 1<br \/>\n1.1.  t \uac80\uc99d \uc0ac\uc6a9\uc758 \uc870\uac74 &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;. 1<br \/>\n1.2. \uacf5\uc2dd &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.. 2<br \/>\n1.2.1. \ub2e8\uc77c\ud45c\ubcf8 t \uac80\uc99d (One sample t test) &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230; 2<br \/>\n1.2.2. \ub3c5\ub9bd\ud45c\ubcf8 t \uac80\uc99d (Independent sample t test)&#8230;&#8230; 2<br \/>\n1.2.3. \ub300\uc751\ud45c\ubcf8 t\uac80\uc99d (paired-sample t test) &#8230;&#8230;&#8230;&#8230;&#8230;.. 2<br \/>\n1.3. t \uac80\uc99d\uc758 \ud06c\uae30\uc5d0 \ub300\ud55c \uc9c0\ud45c &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230; 4<br \/>\n1.4. t\uac80\uc99d\uc758 \uc2e0\ub8b0\uad6c\uac04 \ucd94\uc815 &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;. 4<br \/>\n2. SPSS \uc0ac\ub840 &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.. 5<\/p>\n<p>II. \ube44\ubaa8\uc218 \uac80\uc99d<br \/>\n1. \ud1b5\uacc4\uc801 \uae30\ubc95\ub4e4\uc5d0 \uad00\ud55c \uc694\uc57d + \ube44\ubaa8\uc218 \uac80\uc99d \uc4f0\ub294 \uc774\uc720.10<br \/>\n2. \uba85\ubaa9\uc790\ub8cc\uc5d0 \ub300\ud55c \ube44\ubaa8\uc218 \uac80\uc815&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;11<br \/>\n2.1. \ub2e8\uc77c \ud45c\ubcf8 \uac80\uc815(one-sample test) &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.,.11<br \/>\n2.2. \ub450 \ud45c\ubcf8 \uc9d1\ub2e8\uc758 \uac80\uc815(two-sample test)&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;11<br \/>\n3. \uc11c\uc5f4 \uc790\ub8cc\uc5d0 \ub300\ud55c \ube44\ubaa8\uc218 \uac80\uc815 &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;12<br \/>\n3.1. \ub9e8-\ud718\ud2b8\ub2c8(Mann-Whitney) U \uac80\uc815 &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..12<br \/>\n3.2. \uc70c\ucf55\uc2a8(Wilcoxon) \uc21c\uc704\ud569 \uac80\uc815 &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;..13<br \/>\n3.3. \ud06c\ub8e8\uc2a4\uce7c-\uc648\ub9ac\uc2a4 \uac80\uc815(Kruskal-Wallis) \uac80\uc99d &#8230;&#8230;&#8230;&#8230;&#8230;.14<\/p>\n<p><strong>\ubcf8\ubb38\ub0b4\uc6a9<\/strong><\/p>\n<p>I. t \uac80\uc99d<br \/>\n1.  t \uac80\uc99d\uc758 \ub17c\ub9ac<br \/>\n&#8211; t \uac80\uc99d\uc740 \ub450 \ud45c\ubcf8\uc758 \ud3c9\uade0 \ucc28\uc774\ub97c \uac80\uc99d\ud558\ub294 \ud1b5\uacc4 \ubc29\ubc95 (\ub450 \uc9d1\ub2e8\uc758 \ud3c9\uade0 \ucc28\uc774\uac00 \ud1b5\uacc4\uc801\uc73c\ub85c<br \/>\n \uc720\uc758\ud55c \ucc28\uc774\uc778\uc9c0 \uc6b0\uc5f0\uc774\ub098 \uc624\ucc28\ub85c \uc778\ud55c \uac83\uc778\uc9c0\ub97c \ubd84\uc11d\ud558\ub294 \uae30\ubc95)<br \/>\n&#8211; t \ubd84\ud3ec\ub294 \uc790\uc720\ub3c4\uc5d0 \uc758\ud574 \uaddc\uc815\ub418\uba70 \uc790\uc720\ub3c4\uc758 \uc99d\uac00\uc5d0 \ub530\ub77c z \ubd84\ud3ec\uc5d0 \uadfc\uc811\ud558\ubbc0\ub85c t \ubd84\ud3ec\uc758 \uc790\uc720 \ub3c4\uac00 \ubb34\ud55c\ud788 \uc99d\uac00\ud558\uba74 z \ubd84\ud3ec\uc640 \ub3d9\uc77c\ud574 \uc9d0 (N >50 \ub610\ub294 100 \uc774\uc0c1\uc77c \ub54c \uc815\ud655\uc131\uc740 \ucee4\uc9d0)<br \/>\n&#8211; t \ubd84\ud3ec\ub294 z \ubd84\ud3ec\uc5d0 \ube44\ud574\uc11c \uaf2c\ub9ac\ubd80\ubd84\uc774 \ub450\ud130\uc6c0. t \ubd84\ud3ec\ub294 \uac19\uc740 \ud45c\ubcf8\ud06c\uae30\uc758 z\ubd84\ud3ec\ubcf4\ub2e4 \ubd84\uc0b0\uac12\uc774 \ud06c\ubbc0\ub85c t\ubd84\ud3ec\uc758 \ud45c\uc900\uc624\ucc28\ub294 z\ubd84\ud3ec\uc758 \ud45c\uc900\uc624\ucc28\ubcf4\ub2e4 \ud06c\ub2e4. \ub530\ub77c\uc11c \ud45c\uc9d1\ubd84\ud3ec\uc758 \ud45c\uc900\uc624\ucc28\uc758 \uacbd\uc6b0 t\ubd84\ud3ec\uac00 z\ubd84\ud3ec\ubcf4\ub2e4 \ud06c\ub2e4. \uc774\ub294 t\ubd84\ud3ec\uc758 \ud45c\ubcf8\uc218\uac00 \uc801\uae30 \ub54c\ubb38\uc774\ub2e4.<\/p>\n<p> df\uac00 \ud074\uc218\ub85d z \ubd84\ud3ec(\ud45c\uc900\uc815\uc0c1\ubd84\ud3ec)\uc5d0 \uac00\uae4c\uc6cc\uc9d0     <\/p>\n<p>\ub450 \ud45c\ubcf8\ud3c9\uade0\uc758 \ucc28\uc774\ub97c \ud45c\uc900\uc624\ucc28\ub85c \ube44\uad50 <\/p>\n<p>\ub450 \ud45c\ubcf8\ud3c9\uade0\uc758 \ucc28\uc774\uc758 \ud45c\uc900\uc624\ucc28: \uac01 \ud45c\ubcf8\uc758 \ubd84\uc0b0(\ud45c\uc900\ud3b8\ucc28\uc758 \uc81c\uacf1)\uc744 \ud574\ub2f9 \ud45c\ubcf8\ud06c\uae30\ub85c \ub098\ub208 \ud6c4 \uadf8 \uac12\ub4e4\uc744 \ud569\ud558\uc5ec \uc81c\uacf1\uadfc(\u221a)\ud55c \uac83<\/p>\n<p>1.1.  t \uac80\uc99d \uc0ac\uc6a9\uc758 \uc870\uac74<br \/>\n1) \uc77c\ubc18\uc801\uc73c\ub85c df<30 \uc778 \uc791\uc740 \ud45c\ubcf8\uc758 \uac00\uc124 \uac80\uc99d\uacfc \ucd94\ub9ac\ud1b5\uacc4\uc5d0 \uc0ac\uc6a9\n2)  t \uac80\uc99d \uac00\uc815 \n\u2460 \uc885\uc18d\ubcc0\uc218\uac00 \ub4f1\uac04\ucc99\ub3c4 \uc774\uc0c1\uc774\uc5b4\uc57c \ud558\uace0, \n\u2461 \ud45c\ubcf8\uc740 \ubb34\uc120\uc801\uc774\uace0 \ub3c5\ub9bd\uc801\uc73c\ub85c \ud45c\uc9d1\ub418\uc5b4\uc57c \ud55c\ub2e4. \n\u2462 \ud45c\uc9d1\ud55c \ubaa8\uc9d1\ub2e8\uc774 \uc815\uaddc\ubd84\ud3ec\ub97c \uc774\ub904\uc57c \ud558\uba70, \n\u2463 \ud3c9\uade0\ucc28\uc758 \uac80\uc99d\uc744 \ud560 \uc218 \uc788\uae30 \uc704\ud574\uc11c\ub294 \uc774\ub4e4 \ubaa8\uc9d1\ub2e8\ub4e4\uc774 \ub3d9\uc9c8\uc801\uc774\uc5b4\uc57c \ud55c\ub2e4. \n  (F \ubd84\ud3ec\ub97c \ud1b5\ud574 \ud655\uc778 Levene \uac80\uc815 \uc0ac\uc6a9)\n\n1.2. \uacf5\uc2dd\n1.2.1. \ub2e8\uc77c\ud45c\ubcf8 t \uac80\uc99d (One sample t test)\n- \ub2e8\uc77c \ud45c\ubcf8\uc758 \ud3c9\uade0\uc774 \ud2b9\uc815 '\uc0c1\uc218'\uc640 \uac19\uc740\uc9c0\uc758 \uc5ec\ubd80\ub97c \uac80\uc99d\ud558\uae30 \uc704\ud568 \n\uc608.  A \ud0c0\uc774\uc5b4 \uc81c\uc870\uc5c5\uccb4\uc758 \ud0c0\uc774\uc5b4 \ud3c9\uade0 \uc218\uba85\uc774 \uacf5\uc5c5 \uaddc\uaca9(60\uac1c\uc6d4)\uacfc \uac19\uc740\uc9c0 \ud655\uc778\ud560 \ub54c\n\uac00\uc124\nHo : \u03bc=60\nH1:  \u03bc\u226060\n\u2192 z \uac80\uc99d\uc744 \uc0ac\uc6a9\ud560 \uc218\ub3c4 \uc788\uc9c0\ub9cc t \uac80\uc99d\uc740 \ud45c\ubcf8\ubd84\ud3ec\uc5d0 \uc801\uc6a9\ub418\uace0 z \uac80\uc99d\uc740 \ubaa8\uc9d1\ub2e8 \ubd84\ud3ec\uc5d0 \uc801\uc6a9 \ud560 \uc218 \uc788\ub2e4\ub294 \uc810\uc774 \ub2e4\ub984\n\n<br \/>\ucd9c\ucc98 : <a href=\"https:\/\/www.happycampus.com\/report-doc\/29557375\/\" target=\"_blank\">\ud574\ud53c\ucea0\ud37c\uc2a4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ubaa9\ucc28 I. t \uac80\uc99d 1. t \uac80\uc99d\uc758 \ub17c\ub9ac &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;. 1 1.1. t \uac80\uc99d \uc0ac\uc6a9\uc758 \uc870\uac74 &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;. 1 1.2. \uacf5\uc2dd &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.. 2 1.2.1. \ub2e8\uc77c\ud45c\ubcf8 t \uac80\uc99d (One sample t test) &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230; 2 1.2.2. \ub3c5\ub9bd\ud45c\ubcf8 t \uac80\uc99d (Independent sample t test)&#8230;&#8230; 2 1.2.3. \ub300\uc751\ud45c\ubcf8 t\uac80\uc99d (paired-sample t test) &#8230;&#8230;&#8230;&#8230;&#8230;.. 2 1.3. t \uac80\uc99d\uc758 \ud06c\uae30\uc5d0 \ub300\ud55c \uc9c0\ud45c &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230; [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[29440,2210,29441,29443,29442],"class_list":["post-23720","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-t","tag-2210","tag-29441","tag-29443","tag-29442"],"_links":{"self":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/23720","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/comments?post=23720"}],"version-history":[{"count":0,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/23720\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=23720"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/categories?post=23720"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/tags?post=23720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}