{"id":1814,"date":"2023-07-24T21:14:08","date_gmt":"2023-07-24T21:14:08","guid":{"rendered":"https:\/\/statorials.org\/ko\/r%e1%84%8b%e1%85%b4-%e1%84%80%e1%85%a1%e1%84%89%e1%85%a5%e1%86%af-%e1%84%80%e1%85%a5%e1%86%b7%e1%84%8c%e1%85%a5%e1%86%bc\/"},"modified":"2023-07-24T21:14:08","modified_gmt":"2023-07-24T21:14:08","slug":"r%e1%84%8b%e1%85%b4-%e1%84%80%e1%85%a1%e1%84%89%e1%85%a5%e1%86%af-%e1%84%80%e1%85%a5%e1%86%b7%e1%84%8c%e1%85%a5%e1%86%bc","status":"publish","type":"post","link":"https:\/\/statorials.org\/ko\/r%e1%84%8b%e1%85%b4-%e1%84%80%e1%85%a1%e1%84%89%e1%85%a5%e1%86%af-%e1%84%80%e1%85%a5%e1%86%b7%e1%84%8c%e1%85%a5%e1%86%bc\/","title":{"rendered":"\uc804\uccb4 \uac00\uc774\ub4dc: r\uc758 \uac00\uc124 \ud14c\uc2a4\ud2b8"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><a href=\"https:\/\/statorials.org\/ko\/\u1100\u1161\u1109\u1165\u11af-\u1100\u1165\u11b7\u110c\u1165\u11bc-1\/\" target=\"_blank\" rel=\"noopener\">\uac00\uc124 \ud14c\uc2a4\ud2b8\ub294<\/a> \ud1b5\uacc4\uc801 \uac00\uc124\uc744 \uae30\uac01\ud558\uac70\ub098 \uae30\uac01\ud558\uc9c0 \ubabb\ud558\ub294 \ub370 \uc0ac\uc6a9\ud558\ub294 \uacf5\uc2dd\uc801\uc778 \ud1b5\uacc4 \ud14c\uc2a4\ud2b8\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774 \ud29c\ud1a0\ub9ac\uc5bc\uc5d0\uc11c\ub294 R\uc5d0\uc11c \ub2e4\uc74c \uac00\uc124 \ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">\uc0d8\ud50c t \ud14c\uc2a4\ud2b8<\/span><\/li>\n<li> <span style=\"color: #000000;\">2-\ud45c\ubcf8 T-\uac80\uc815<\/span><\/li>\n<li> <span style=\"color: #000000;\">\uc30d\uc744 \uc774\ub8e8\ub294 \ud45c\ubcf8 t-\uac80\uc815<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">R\uc758 <strong>t.test()<\/strong> \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec \uac01 \uc720\ud615\uc758 \ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#one sample t-test<\/span>\nt. <span style=\"color: #3366ff;\">test<\/span> (x, y = NULL,\n       alternative = c(\" <span style=\"color: #ff0000;\">two.sided<\/span> \", \" <span style=\"color: #ff0000;\">less<\/span> \", \" <span style=\"color: #ff0000;\">greater<\/span> \"),\n       mu = 0, paired = FALSE, var.equal = <span style=\"color: #008000;\">FALSE<\/span> ,\n       conf.level = 0.95, \u2026)<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\uae08:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>x, y:<\/strong> \ub450 \uac1c\uc758 \ub370\uc774\ud130 \uc0d8\ud50c.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>\ub300\uc548:<\/strong> \uac80\uc815\uc758 \ub300\ub9bd \uac00\uc124\uc785\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>mu:<\/strong> \ud3c9\uade0\uc758 \uc2e4\uc81c \uac12\uc785\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>paired:<\/strong> paired t-test\ub97c \uc218\ud589\ud560\uc9c0 \uc5ec\ubd80.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>var.equal:<\/strong> \uc0d8\ud50c \uac04\uc758 <a href=\"https:\/\/statorials.org\/ko\/\u1103\u1173\u11bc\u1107\u116e\u11ab\u1109\u1161\u11ab-\u1104\u1169\u1102\u1173\u11ab-\u1107\u116e\u11af\u1100\u1172\u11ab\u1103\u1173\u11bc\u1107\u116e\u11ab\u1109\u1161\u11ab-\u1100\u1167\u11af\u110c\u1165\u11bc\/\" target=\"_blank\" rel=\"noopener\">\ubd84\uc0b0\uc774 \ub3d9\uc77c\ud558\ub2e4\uace0<\/a> \uac00\uc815\ud560\uc9c0 \uc5ec\ubd80\uc785\ub2c8\ub2e4.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>conf.level:<\/strong> \uc0ac\uc6a9\ud560 <a href=\"https:\/\/statorials.org\/ko\/\u1109\u1175\u11ab\u1105\u116c-\u1109\u116e\u110c\u116e\u11ab\u1100\u116a-\u1109\u1175\u11ab\u1105\u116c-\u1100\u116e\u1100\u1161\u11ab\/\" target=\"_blank\" rel=\"noopener\">\uc2e0\ub8b0 \uc218\uc900<\/a> \uc785\ub2c8\ub2e4.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \uc608\uc5d0\uc11c\ub294 \uc774 \uae30\ub2a5\uc744 \uc2e4\uc81c\ub85c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\uc608 1: R\uc758 \uc77c\ud45c\ubcf8 t-\uac80\uc815<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\"><a href=\"https:\/\/statorials.org\/ko\/\u1111\u116d\u1107\u1169\u11ab-t-\u1100\u1165\u11b7\u110c\u1165\u11bc\/\" target=\"_blank\" rel=\"noopener\">\ub2e8\uc77c \ud45c\ubcf8 t-\uac80\uc815\uc740<\/a> \ubaa8\uc9d1\ub2e8\uc758 \ud3c9\uade0\uc774 \ud2b9\uc815 \uac12\uacfc \uac19\uc740\uc9c0 \uc5ec\ubd80\ub97c \uac80\uc815\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc608\ub97c \ub4e4\uc5b4, \ud2b9\uc815 \uac70\ubd81\uc774 \uc885\uc758 \ud3c9\uade0 \ubb34\uac8c\uac00 310\ud30c\uc6b4\ub4dc\uc778\uc9c0 \uc54c\uace0 \uc2f6\ub2e4\uace0 \uac00\uc815\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc6b0\ub9ac\ub294 \ub098\uac00\uc11c \ub2e4\uc74c\uacfc \uac19\uc740 \uac00\uc911\uce58\ub97c \uac16\ub294 \uac04\ub2e8\ud55c \ubb34\uc791\uc704 \uac70\ubd81\uc774 \uc0d8\ud50c\uc744 \uc218\uc9d1\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\uc911\ub7c9<\/strong> : 300, 315, 320, 311, 314, 309, 300, 308, 305, 303, 305, 301, 303<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \ucf54\ub4dc\ub294 R\uc5d0\uc11c \uc774 t-\ud14c\uc2a4\ud2b8 \uc608\uc81c\ub97c \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define vector of turtle weights\n<span style=\"color: #000000;\">turtle_weights &lt;- c(300, 315, 320, 311, 314, 309, 300, 308, 305, 303, 305, 301, 303)<\/span>\n\n#perform one sample t-test<\/span>\nt. <span style=\"color: #3366ff;\">test<\/span> (x=turtle_weights,mu=310)\n\n\tOne Sample t-test\n\ndata: turtle_weights\nt = -1.5848, df = 12, p-value = 0.139\nalternative hypothesis: true mean is not equal to 310\n95 percent confidence interval:\n 303.4236 311.0379\nsample estimates:\nmean of x \n 307.2308<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\uacb0\uacfc\uc5d0\uc11c \uc6b0\ub9ac\ub294 \ub2e4\uc74c\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">t-\uac80\uc815 \ud1b5\uacc4: <strong>-1.5848<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">\uc790\uc720\ub3c4: <strong>12<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">p-\uac12: <strong>0.139<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">\uc2e4\uc81c \ud3c9\uade0\uc5d0 \ub300\ud55c 95% \uc2e0\ub8b0 \uad6c\uac04: <strong>[303.4236, 311.0379]<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">\uac70\ubd81\uc774\uc758 \ud3c9\uade0 \uccb4\uc911: <strong>307,230\ub9c8\ub9ac<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">\uac80\uc815\uc758 p-\uac12(0.139)\uc774 0.05 \uc774\uc0c1\uc774\ubbc0\ub85c \uadc0\ubb34\uac00\uc124\uc744 \uae30\uac01\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774\ub294 \uc774 \uac70\ubd81 \uc885\uc758 \ud3c9\uade0 \uccb4\uc911\uc774 310\ud30c\uc6b4\ub4dc\uac00 \uc544\ub2c8\ub77c\uace0 \ub9d0\ud560 \uc218 \uc788\ub294 \ucda9\ubd84\ud55c \uc99d\uac70\uac00 \uc5c6\ub2e4\ub294 \uac83\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\uc608 2: R\uc758 2-\ud45c\ubcf8 t-\uac80\uc815<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\"><a href=\"https:\/\/statorials.org\/ko\/\u1103\u116e-\u1109\u1162\u11b7\u1111\u1173\u11af\u110b\u1173\u11af-\u1110\u1166\u1109\u1173\u1110\u1173\u1112\u1162-\u1107\u1169\u1109\u1166\u110b\u116d\/\" target=\"_blank\" rel=\"noopener\">2-\ud45c\ubcf8 t-\uac80\uc815\uc740<\/a> \ub450 \ubaa8\uc9d1\ub2e8\uc758 \ud3c9\uade0\uc774 \uac19\uc740\uc9c0 \uc5ec\ubd80\ub97c \uac80\uc815\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc608\ub97c \ub4e4\uc5b4, \uc11c\ub85c \ub2e4\ub978 \ub450 \uc885\uc758 \uac70\ubd81\uc774\uc758 \ud3c9\uade0 \uccb4\uc911\uc774 \uac19\uc740\uc9c0 \uc5ec\ubd80\ub97c \uc54c\uace0 \uc2f6\ub2e4\uace0 \uac00\uc815\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc774\ub97c \ud14c\uc2a4\ud2b8\ud558\uae30 \uc704\ud574 \uc6b0\ub9ac\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uac00\uc911\uce58\ub97c \uc0ac\uc6a9\ud558\uc5ec \uac01 \uc885\uc5d0\uc11c \ub2e8\uc21c \ubb34\uc791\uc704 \uac70\ubd81\uc774 \uc0d8\ud50c\uc744 \uc218\uc9d1\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\uc0d8\ud50c 1<\/strong> : 300, 315, 320, 311, 314, 309, 300, 308, 305, 303, 305, 301, 303<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\uc0d8\ud50c 2<\/strong> : 335, 329, 322, 321, 324, 319, 304, 308, 305, 311, 307, 300, 305<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \ucf54\ub4dc\ub294 R\uc5d0\uc11c \uc774\ub7ec\ud55c \ub450 \uac00\uc9c0 t-\ud14c\uc2a4\ud2b8 \uc608\uc81c\ub97c \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define vector of turtle weights for each sample\n<span style=\"color: #000000;\">sample1 &lt;- c(300, 315, 320, 311, 314, 309, 300, 308, 305, 303, 305, 301, 303)<\/span>\n<span style=\"color: #000000;\">sample2 &lt;- c(335, 329, 322, 321, 324, 319, 304, 308, 305, 311, 307, 300, 305)<\/span>\n\n#perform two sample t-tests<\/span>\nt. <span style=\"color: #3366ff;\">test<\/span> (x = sample1, y = sample2)\n\n\tWelch Two Sample t-test\n\ndata: sample1 and sample2\nt = -2.1009, df = 19.112, p-value = 0.04914\nalternative hypothesis: true difference in means is not equal to 0\n95 percent confidence interval:\n -14.73862953 -0.03060124\nsample estimates:\nmean of x mean of y \n 307.2308 314.6154<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\uacb0\uacfc\uc5d0\uc11c \uc6b0\ub9ac\ub294 \ub2e4\uc74c\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">t-\uac80\uc815 \ud1b5\uacc4: <strong>-2.1009<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">\uc790\uc720\ub3c4: <strong>19,112<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">p-\uac12: <strong>0.04914<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">\uc2e4\uc81c \ud3c9\uade0 \ucc28\uc774\uc5d0 \ub300\ud55c 95% \uc2e0\ub8b0 \uad6c\uac04: <strong>[-14.74, -0.03]<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">\uc0d8\ud50c 1\uc758 \ud3c9\uade0 \uc911\ub7c9: <strong>307.2308<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">\uc0d8\ud50c 2\uc758 \ud3c9\uade0 \uc911\ub7c9: <strong>314.6154<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">\uac80\uc815\uc758 p-\uac12(0.04914)\uc774 0.05\ubcf4\ub2e4 \uc791\uc73c\ubbc0\ub85c \uadc0\ubb34\uac00\uc124\uc744 \uae30\uac01\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774\ub294 \ub450 \uc885 \uc0ac\uc774\uc758 \ud3c9\uade0 \uccb4\uc911\uc774 \ub3d9\uc77c\ud558\uc9c0 \uc54a\ub2e4\uace0 \ub9d0\ud560 \uc218 \uc788\ub294 \ucda9\ubd84\ud55c \uc99d\uac70\uac00 \uc788\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\uc608 3: R\uc758 \ub300\uc751\ud45c\ubcf8 t-\uac80\uc815<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\"><a href=\"https:\/\/statorials.org\/ko\/\u110a\u1161\u11bc\u110b\u1173\u11af-\u110b\u1175\u1105\u116e\u1102\u1173\u11ab-\u1111\u116d\u1107\u1169\u11ab-t-\u1100\u1165\u11b7\u110c\u1165\u11bc\/\" target=\"_blank\" rel=\"noopener\">\uc30d\ud45c\ubcf8 t-\uac80\uc815\uc740<\/a> \ud55c \ud45c\ubcf8\uc758 \uac01 \uad00\uce21\uce58\uac00 \ub2e4\ub978 \ud45c\ubcf8\uc758 \uad00\uce21\uce58\uc640 \uc5f0\uad00\ub420 \uc218 \uc788\ub294 \uacbd\uc6b0 \ub450 \ud45c\ubcf8\uc758 \ud3c9\uade0\uc744 \ube44\uad50\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc608\ub97c \ub4e4\uc5b4, \ud2b9\uc815 \ud6c8\ub828 \ud504\ub85c\uadf8\ub7a8\uc774 \ub18d\uad6c \uc120\uc218\uc758 \ucd5c\ub300 \uc218\uc9c1 \uc810\ud504(\uc778\uce58)\ub97c \uc99d\uac00\uc2dc\ud0ac \uc218 \uc788\ub294\uc9c0 \uc5ec\ubd80\ub97c \uc54c\uace0 \uc2f6\ub2e4\uace0 \uac00\uc815\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774\ub97c \ud14c\uc2a4\ud2b8\ud558\uae30 \uc704\ud574 12\uba85\uc758 \ub300\ud559 \ub18d\uad6c \uc120\uc218\ub85c \uad6c\uc131\ub41c \ub2e8\uc21c \ubb34\uc791\uc704 \ud45c\ubcf8\uc744 \ubaa8\uc9d1\ud558\uace0 \uac01\uac01\uc758 \ucd5c\ub300 \uc218\uc9c1 \uc810\ud504\ub97c \uce21\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c \uac01 \uc120\uc218\uc5d0\uac8c \ud55c \ub2ec \ub3d9\uc548 \ud6c8\ub828 \ud504\ub85c\uadf8\ub7a8\uc744 \uc0ac\uc6a9\ud558\uac8c \ud55c \ub2e4\uc74c \uc6d4\ub9d0\uc5d0 \ucd5c\ub300 \uc218\uc9c1 \uc810\ud504\ub97c \ub2e4\uc2dc \uce21\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \ub370\uc774\ud130\ub294 \uac01 \uc120\uc218\uc758 \ud6c8\ub828 \ud504\ub85c\uadf8\ub7a8 \uc0ac\uc6a9 \uc804\ud6c4\uc758 \ucd5c\ub300 \uc810\ud504 \ub192\uc774(\uc778\uce58)\ub97c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\uc804\uba74<\/strong> : 22, 24, 20, 19, 19, 20, 22, 25, 24, 23, 22, 21<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\uc774\ud6c4<\/strong> : 23, 25, 20, 24, 18, 22, 23, 28, 24, 25, 24, 20<\/span><\/p>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \ucf54\ub4dc\ub294 R\uc5d0\uc11c \uc774 \ub300\uc751\ud45c\ubcf8 t-\uac80\uc815\uc744 \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define before and after max jump heights\n<span style=\"color: #000000;\">before &lt;- c(22, 24, 20, 19, 19, 20, 22, 25, 24, 23, 22, 21)<\/span>\n<span style=\"color: #000000;\">after &lt;- c(23, 25, 20, 24, 18, 22, 23, 28, 24, 25, 24, 20)<\/span>\n\n#perform paired samples t-test<\/span>\nt. <span style=\"color: #3366ff;\">test<\/span> (x = before, y = after, paired = <span style=\"color: #008000;\">TRUE<\/span> )\n\n\tPaired t-test\n\ndata: before and after\nt = -2.5289, df = 11, p-value = 0.02803\nalternative hypothesis: true difference in means is not equal to 0\n95 percent confidence interval:\n -2.3379151 -0.1620849\nsample estimates:\nmean of the differences \n                  -1.25<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\uacb0\uacfc\uc5d0\uc11c \uc6b0\ub9ac\ub294 \ub2e4\uc74c\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">t-\uac80\uc815 \ud1b5\uacc4: <strong>-2.5289<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">\uc790\uc720\ub3c4: <strong>11<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">p-\uac12: <strong>0.02803<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">\uc2e4\uc81c \ud3c9\uade0 \ucc28\uc774\uc5d0 \ub300\ud55c 95% \uc2e0\ub8b0 \uad6c\uac04: <strong>[-2.34, -0.16]<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">\uc804\ud6c4\uc758 \ud3c9\uade0 \ucc28\uc774: <strong>-1.25<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">\uac80\uc815\uc758 p-\uac12(0.02803)\uc774 0.05\ubcf4\ub2e4 \uc791\uc73c\ubbc0\ub85c \uadc0\ubb34\uac00\uc124\uc744 \uae30\uac01\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\uc774\ub294 \ud6c8\ub828 \ud504\ub85c\uadf8\ub7a8 \uc0ac\uc6a9 \uc804\uacfc \ud6c4\uc758 \ud3c9\uade0 \uc810\ud504 \ub192\uc774\uac00 \ub3d9\uc77c\ud558\uc9c0 \uc54a\ub2e4\uace0 \ub9d0\ud560 \uc218 \uc788\ub294 \ucda9\ubd84\ud55c \uc99d\uac70\uac00 \uc788\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\ucd94\uac00 \ub9ac\uc18c\uc2a4<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\ub2e4\uc74c \uc628\ub77c\uc778 \uacc4\uc0b0\uae30\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub2e4\uc591\ud55c t-\uac80\uc815\uc744 \uc790\ub3d9\uc73c\ub85c \uc218\ud589\ud558\uc138\uc694.<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/ko\/\u1109\u1162\u11b7\u1111\u1173\u11af-t-\u1110\u1166\u1109\u1173\u1110\u1173-\u1100\u1168\u1109\u1161\u11ab\u1100\u1175\/\" target=\"_blank\" rel=\"noopener\">t-\ud14c\uc2a4\ud2b8 \uacc4\uc0b0\uae30\uc758 \uc608<\/a><br \/> <a href=\"https:\/\/statorials.org\/ko\/\u1110\u1161-\u1110\u1166\u1109\u1173\u1110\u1173-\u1100\u1168\u1109\u1161\u11ab\u1100\u1175-\u1103\u116e-\u1100\u1162\u110b\u1174-\u1109\u1162\u11b7\u1111\u1173\u11af\/\" target=\"_blank\" rel=\"noopener\">2-\ud45c\ubcf8 t-\uac80\uc815 \uacc4\uc0b0\uae30<\/a><br \/> <a href=\"https:\/\/statorials.org\/ko\/\u110a\u1161\u11bc\u110b\u1173\u11af-\u110b\u1175\u1105\u116e\u1102\u1173\u11ab-\u1109\u1162\u11b7\u1111\u1173\u11af-t-\u1110\u1166\u1109\u1173\u1110\u1173-\u1100\u1168\u1109\u1161\u11ab\u1100\u1175\/\" target=\"_blank\" rel=\"noopener\">\uc30d\uccb4 \ud45c\ubcf8 t-\uac80\uc815 \uacc4\uc0b0\uae30<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uac00\uc124 \ud14c\uc2a4\ud2b8\ub294 \ud1b5\uacc4\uc801 \uac00\uc124\uc744 \uae30\uac01\ud558\uac70\ub098 \uae30\uac01\ud558\uc9c0 \ubabb\ud558\ub294 \ub370 \uc0ac\uc6a9\ud558\ub294 \uacf5\uc2dd\uc801\uc778 \ud1b5\uacc4 \ud14c\uc2a4\ud2b8\uc785\ub2c8\ub2e4. \uc774 \ud29c\ud1a0\ub9ac\uc5bc\uc5d0\uc11c\ub294 R\uc5d0\uc11c \ub2e4\uc74c \uac00\uc124 \ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. \uc0d8\ud50c t \ud14c\uc2a4\ud2b8 2-\ud45c\ubcf8 T-\uac80\uc815 \uc30d\uc744 \uc774\ub8e8\ub294 \ud45c\ubcf8 t-\uac80\uc815 R\uc758 t.test() \ud568\uc218\ub97c \uc0ac\uc6a9\ud558\uc5ec \uac01 \uc720\ud615\uc758 \ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. #one sample t-test t. test (x, y = NULL, alternative = c(&#8221; two.sided &#8220;, &#8221; [&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-1814","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>\uc804\uccb4 \uac00\uc774\ub4dc: R\uc758 \uac00\uc124 \ud14c\uc2a4\ud2b8<\/title>\n<meta name=\"description\" content=\"\uc774 \ud29c\ud1a0\ub9ac\uc5bc\uc740 \uba87 \uac00\uc9c0 \uc608\ub97c \ud3ec\ud568\ud558\uc5ec R\uc758 \uac00\uc124 \ud14c\uc2a4\ud2b8\uc5d0 \ub300\ud55c \uc644\uc804\ud55c \uac00\uc774\ub4dc\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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