{"id":647,"date":"2023-07-29T05:23:36","date_gmt":"2023-07-29T05:23:36","guid":{"rendered":"https:\/\/statorials.org\/ko\/%e1%84%8b%e1%85%b0%e1%86%af%e1%84%8e%e1%85%b5%e1%84%89%e1%85%b3-t-%e1%84%90%e1%85%a6%e1%84%89%e1%85%b3%e1%84%90%e1%85%b3-%e1%84%8b%e1%85%a6%e1%86%a8%e1%84%89%e1%85%a6%e1%86%af\/"},"modified":"2023-07-29T05:23:36","modified_gmt":"2023-07-29T05:23:36","slug":"%e1%84%8b%e1%85%b0%e1%86%af%e1%84%8e%e1%85%b5%e1%84%89%e1%85%b3-t-%e1%84%90%e1%85%a6%e1%84%89%e1%85%b3%e1%84%90%e1%85%b3-%e1%84%8b%e1%85%a6%e1%86%a8%e1%84%89%e1%85%a6%e1%86%af","status":"publish","type":"post","link":"https:\/\/statorials.org\/ko\/%e1%84%8b%e1%85%b0%e1%86%af%e1%84%8e%e1%85%b5%e1%84%89%e1%85%b3-t-%e1%84%90%e1%85%a6%e1%84%89%e1%85%b3%e1%84%90%e1%85%b3-%e1%84%8b%e1%85%a6%e1%86%a8%e1%84%89%e1%85%a6%e1%86%af\/","title":{"rendered":"Excel\uc5d0\uc11c welch\uc758 t-\uac80\uc815\uc744 \uc218\ud589\ud558\ub294 \ubc29\ubc95"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">\ub450 \ub3c5\ub9bd \uadf8\ub8f9 \uac04\uc758 \ud3c9\uade0\uc744 \ube44\uad50\ud558\ub294 \uac00\uc7a5 \uc77c\ubc18\uc801\uc778 \ubc29\ubc95\uc740 <strong>2-\ud45c\ubcf8 t-\uac80\uc815\uc744<\/strong> \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc774 \uac80\uc815\uc5d0\uc11c\ub294 \ub450 \uadf8\ub8f9 \uac04\uc758 \ubd84\uc0b0\uc774 \ub3d9\uc77c\ud558\ub2e4\uace0 \uac00\uc815\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ub450 \uadf8\ub8f9 \uac04\uc758 \ubd84\uc0b0\uc774 \ub3d9\uc77c <em>\ud558\uc9c0 \uc54a\ub2e4\uace0<\/em> \uc0dd\uac01\ub418\uba74 2-\ud45c\ubcf8 t-\uac80\uc815\uc5d0 \ud574\ub2f9\ud558\ub294 \ube44\ubaa8\uc218\uc801 \ubc29\ubc95\uc778 <strong><a href=\"https:\/\/statorials.org\/ko\/\u110b\u1170\u11af\u110e\u1175\u1109\u1173-t-\u1110\u1166\u1109\u1173\u1110\u1173\/\" target=\"_blank\" rel=\"noopener\">Welch\uc758 t-\uac80\uc815\uc744<\/a><\/strong> \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774 \uc790\uc2b5\uc11c\uc5d0\uc11c\ub294 Excel\uc5d0\uc11c Welch\uc758 t-\uac80\uc815\uc744 \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h2> <strong>\uc608: Excel\uc758 Welch\uc758 t-\uac80\uc815<\/strong><\/h2>\n<p> <span style=\"color: #000000;\">\uc774 \uc608\uc5d0\uc11c\ub294 \uc2dc\ud5d8 \uc900\ube44 \ucc45\uc790\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc2dc\ud5d8\uc744 \uc900\ube44\ud55c 12\uba85\uc758 \ud559\uc0dd\uacfc \uadf8\ub807\uc9c0 \uc54a\uc740 12\uba85\uc758 \ud559\uc0dd\uc758 \uacb0\uacfc\ub97c \ube44\uad50\ud560 \uac83\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \ub2e8\uacc4\uc5d0 \ub530\ub77c Welch&#8217;t t-test\ub97c \uc218\ud589\ud558\uc5ec \ub450 \uadf8\ub8f9 \uac04\uc758 \ud3c9\uade0 \uc2dc\ud5d8 \uc810\uc218\uc5d0 \ucc28\uc774\uac00 \uc788\ub294\uc9c0 \ud655\uc778\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>1\ub2e8\uacc4: \ub370\uc774\ud130\ub97c \uc785\ub825\ud569\ub2c8\ub2e4.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">\uba3c\uc800 \ub450 \uc5f4\uc5d0 \uc2dc\ud5d8 \uacb0\uacfc\ub97c \uc785\ub825\ud569\ub2c8\ub2e4.<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-6189 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/welchexcel1.png\" alt=\"Excel\uc758 \uc6d0\uc2dc \ub370\uc774\ud130\" width=\"395\" height=\"392\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\"><strong>2\ub2e8\uacc4: Welch\uc758 t-\uac80\uc815\uc744 \uc218\ud589\ud569\ub2c8\ub2e4.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Excel \uc0c1\ub2e8 \ub9ac\ubcf8\uc5d0\uc11c <strong>\ub370\uc774\ud130<\/strong> \ud0ed\uc73c\ub85c \uc774\ub3d9\ud558\uc5ec <strong>\ub370\uc774\ud130 \ubd84\uc11d\uc744<\/strong> \ud074\ub9ad\ud569\ub2c8\ub2e4. \uc774 \uc635\uc158\uc774 \ud45c\uc2dc\ub418\uc9c0 \uc54a\uc73c\uba74 \uba3c\uc800<\/span> <a href=\"https:\/\/statorials.org\/ko\/excel\u110b\u1166\u1109\u1165-\u1107\u116e\u11ab\u1109\u1165\u11a8-\u1103\u1169\u1100\u116e-\u1111\u1162\u11a8\u110b\u1173\u11af-\u1105\u1169\u1103\u1173\u1112\u1161\u1102\u1173\u11ab-\u1107\u1161\u11bc\u1107\u1165\u11b8\/\" target=\"_blank\" rel=\"noopener\">\ubb34\ub8cc Analysis ToolPak \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub97c \uc124\uce58<\/a> \ud574\uc57c \ud569\ub2c8\ub2e4. <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-5292 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/deuxsampexcel3.png\" alt=\"\" width=\"511\" height=\"195\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">\ub370\uc774\ud130 \ubd84\uc11d\uc744 \ud074\ub9ad\ud558\uba74 \uc0c8 \ucc3d\uc774 \ub098\ud0c0\ub0a9\ub2c8\ub2e4. <strong>t-test: \ubd88\ud3c9\ub4f1 \ubd84\uc0b0\uc744 \uac00\uc815\ud558\ub294 \ub450 \uac1c\uc758 \uc0d8\ud50c\uc744<\/strong> \uc120\ud0dd\ud558\uace0 <strong>OK \ub97c<\/strong> \ud074\ub9ad\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc0c8 \ucc3d\uc5d0\uc11c \uadf8\ub8f9 \ub77c\ubca8\uc744 \ud3ec\ud568\ud558\uc5ec <strong>\ubcc0\uc218 1<\/strong> \uacfc <strong>\ubcc0\uc218 2<\/strong> \uc758 \ub370\uc774\ud130 \uac12 \ubc94\uc704\ub97c \uc785\ub825\ud569\ub2c8\ub2e4. <strong>\uac00\uc124 \ud3c9\uade0 \ucc28\uc774<\/strong> \uc5d0 0\uc744 \uc785\ub825\ud569\ub2c8\ub2e4. <strong>\ub808\uc774\ube14<\/strong> \uc606\uc758 \ud655\uc778\ub780\uc744 \uc120\ud0dd\ud569\ub2c8\ub2e4. <strong>\uc54c\ud30c\ub294<\/strong> 0.05\ub85c \uc124\uc815\ud574 \ub461\ub2c8\ub2e4. <strong>\ucd9c\ub825 \ubc94\uc704<\/strong> \uc5d0\uc11c \ud14c\uc2a4\ud2b8 \uacb0\uacfc\ub97c \ud45c\uc2dc\ud560 \uc140\uc744 \uc120\ud0dd\ud569\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c <strong>\ud655\uc778\uc744<\/strong> \ud074\ub9ad\ud569\ub2c8\ub2e4.<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-6195 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/welchexcel2.png\" alt=\"Excel\uc758 Welch\uc758 t-\uac80\uc815 \uc608\" width=\"440\" height=\"513\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \ucd9c\ub825\uc774 \uc790\ub3d9\uc73c\ub85c \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-6191 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/welchexcel3.png\" alt=\"Excel\uc5d0\uc11c Welch\uc758 t-\uac80\uc815 \uacb0\uacfc\" width=\"573\" height=\"364\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">\uacb0\uacfc\ub97c \ud574\uc11d\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>\ud3c9\uade0:<\/strong> \uac01 \uadf8\ub8f9\uc758 \ud3c9\uade0 \uc2dc\ud5d8 \uc810\uc218\uc785\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>\ubd84\uc0b0:<\/strong> \uac01 \uadf8\ub8f9\uc758 \uc2dc\ud5d8 \uc810\uc218\uc758 \ubd84\uc0b0\uc785\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>\uad00\ucc30:<\/strong> \uac01 \uadf8\ub8f9\uc758 \ud45c\ubcf8 \ud06c\uae30.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>\uac00\uc124 \ud3c9\uade0 \ucc28\uc774:<\/strong> \uac80\uc815\uc758 \uadc0\ubb34 \uac00\uc124\uc5d0 \uc0ac\uc6a9\ud560 \ud3c9\uade0 \ucc28\uc774\uc785\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>df:<\/strong> \uac80\uc815 \ud1b5\uacc4\ub7c9\uacfc \ud568\uaed8 \uc0ac\uc6a9\ud560 \uc790\uc720\ub3c4\uc774\uba70 n <sub>1<\/sub> + n <sub>2<\/sub> \u2013 2\ub85c \uacc4\uc0b0\ub429\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>t \ud1b5\uacc4:<\/strong> \ud14c\uc2a4\ud2b8\uc5d0 \ub300\ud55c \ud14c\uc2a4\ud2b8 \ud1b5\uacc4\uc785\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>\ub2e8\uce21 P(T&lt;=t):<\/strong> \ub2e8\uce21 \uac80\uc815\uc5d0 \ub300\ud55c \uac80\uc815 \ud1b5\uacc4\ub7c9\uacfc \uc5f0\uad00\ub41c p-\uac12\uc785\ub2c8\ub2e4. \uc591\uce21 \ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud558\uace0 \uc788\uc73c\ubbc0\ub85c \uc774\ub97c \ubb34\uc2dc\ud558\uc2ed\uc2dc\uc624.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>P(T&lt;=t) \uc591\uce21 \uac80\uc815:<\/strong> \uc591\uce21 \uac80\uc815\uc5d0 \ub300\ud55c \uac80\uc815 \ud1b5\uacc4\ub7c9\uacfc \uc5f0\uad00\ub41c p-\uac12\uc785\ub2c8\ub2e4. \uc774\ub294 0.05\ubcf4\ub2e4 \uc791\uc73c\ubbc0\ub85c \uadc0\ubb34 \uac00\uc124\uc744 \uae30\uac01\ud558\uace0 \ub450 \uadf8\ub8f9 \uac04\uc758 \ud3c9\uade0 \uc2dc\ud5d8 \uc810\uc218\uac00 \u03b1 = 0.05 \uc218\uc900\uc5d0\uc11c \ud1b5\uacc4\uc801\uc73c\ub85c \uc720\uc758\ud558\uac8c \ub2e4\ub974\ub2e4\ub294 \uacb0\ub860\uc744 \ub0b4\ub9bd\ub2c8\ub2e4.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\"><strong>3\ub2e8\uacc4: \uacb0\uacfc\ub97c \ubcf4\uace0\ud569\ub2c8\ub2e4.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">\ub9c8\uc9c0\ub9c9\uc73c\ub85c Welch&#8217;s t-test\uc758 \uacb0\uacfc\ub97c \ubcf4\uace0\ud558\uace0\uc790 \ud569\ub2c8\ub2e4. \uc774\ub97c \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc758 \uc608\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<blockquote data-slot-rendered-dynamic=\"true\">\n<p> <span style=\"color: #000000;\">\uc2dc\ud5d8 \uc900\ube44 \ucc45\uc790\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc2dc\ud5d8\uc744 \uc900\ube44\ud55c \ud559\uc0dd \uadf8\ub8f9\uacfc \uc774\ub97c \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uc740 \ud559\uc0dd \uadf8\ub8f9 \uac04\uc5d0 \uc2dc\ud5d8 \uc810\uc218\uc5d0 \ud1b5\uacc4\uc801\uc73c\ub85c \uc720\uc758\ubbf8\ud55c \ucc28\uc774\uac00 \uc788\ub294\uc9c0 \ud655\uc778\ud558\uae30 \uc704\ud574 Welch&#8217;s t-test\ub97c \uc2e4\uc2dc\ud588\uc2b5\ub2c8\ub2e4. \ub450 \uadf8\ub8f9\uc758 \ud45c\ubcf8 \ud06c\uae30\ub294 12\uba85\uc758 \ud559\uc0dd\uc774\uc5c8\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Welch\uc758 t-\uac80\uc815\uc5d0\uc11c\ub294 \ub450 \uadf8\ub8f9 \uac04\uc758 \ud3c9\uade0 \uc2dc\ud5d8 \uc810\uc218(t=2.236, p=0.0421)\uc5d0 \ud1b5\uacc4\uc801\uc73c\ub85c \uc720\uc758\ubbf8\ud55c \ucc28\uc774\uac00 \uc788\ub294 \uac83\uc73c\ub85c \ub098\ud0c0\ub0ac\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>\ub450 \ub3c5\ub9bd \uadf8\ub8f9 \uac04\uc758 \ud3c9\uade0\uc744 \ube44\uad50\ud558\ub294 \uac00\uc7a5 \uc77c\ubc18\uc801\uc778 \ubc29\ubc95\uc740 2-\ud45c\ubcf8 t-\uac80\uc815\uc744 \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc774 \uac80\uc815\uc5d0\uc11c\ub294 \ub450 \uadf8\ub8f9 \uac04\uc758 \ubd84\uc0b0\uc774 \ub3d9\uc77c\ud558\ub2e4\uace0 \uac00\uc815\ud569\ub2c8\ub2e4. \ub450 \uadf8\ub8f9 \uac04\uc758 \ubd84\uc0b0\uc774 \ub3d9\uc77c \ud558\uc9c0 \uc54a\ub2e4\uace0 \uc0dd\uac01\ub418\uba74 2-\ud45c\ubcf8 t-\uac80\uc815\uc5d0 \ud574\ub2f9\ud558\ub294 \ube44\ubaa8\uc218\uc801 \ubc29\ubc95\uc778 Welch\uc758 t-\uac80\uc815\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc790\uc2b5\uc11c\uc5d0\uc11c\ub294 Excel\uc5d0\uc11c Welch\uc758 t-\uac80\uc815\uc744 \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. \uc608: Excel\uc758 Welch\uc758 t-\uac80\uc815 \uc774 \uc608\uc5d0\uc11c\ub294 \uc2dc\ud5d8 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-647","post","type-post","status-publish","format-standard","hentry","category-20"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Excel\uc5d0\uc11c Welch\uc758 t-\uac80\uc815\uc744 \uc218\ud589\ud558\ub294 \ubc29\ubc95 - 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