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‹µ„˜µ¦µŠš¸É 1 Á¤ºÉ° œµ—˜´ª°¥µŠn , ‹Îµœªœ˜´ªÂž¦°· ¦³Â¨³¦³—´‡ªµ¤´¤¡´œ›r¦³®ªµŠ˜´ªÂž¦°· ¦ n ³ ‡Šš¸É¡ªµ n
Á¤ºÉ °´—ªœ °Š‡ªµ¤¨o¤Á®¨ª °Š¨´„¬–³š¸É n œÄ‹«¹„¬µ¤¸‡µ¼Š ¹ œ ¨³‹Îµ n Ê œªœ˜´ªÂž¦°· ¦³°¥¼Äœ¦³—´œo n °¥‡µ¦o°¥¨³ n
°Š‹» —Š‹³¤¸‡µ¨—¨Š ¨³Á¤ºÉ°´— n n ªœ °Šn ‡ªµ¤¨o¤Á®¨ª °Š¨´„¬–³š¸É œÄ‹«¹„¬µ¤¸‡µÁšµ„ n n ´ 0.5 ¨³‹Îµœªœ˜´ªÂž¦
°· ¦³°¥¼Äœ¦³—´žµœ„¨µŠ n ¨³¤µ„ ‡µ¦o°¥¨³ n °Š‹» —Š‹³¤¸‡µ¼ Š» — n n ×¥‡µ °Š‹» —Š¤¸‡µž¦³¤µ– n n n 0.4542
˜µ¦µŠš¸É 2: —Š‡µ¦o°¥¨³ °Š‹»—Š n n Á¤ºÉ°‹Îµœªœ˜´ªÂž¦°· ¦³ (p) Ášµ„ n ´ 4 ˜´ª ´—ªœ °Š‡ªµ¤¨o¤Á®¨ª °Š¨´„¬–³š¸É n
œÄ‹«¹„¬µ (a) Ášµ„n ´ 0.1, 0.5 ¨³ 0.9 ×¥‹ÎµÂœ„˜µ¤¦³—´‡ªµ¤´¤¡´œ›r°Š˜´ªÂž¦°· ¦³ (M) Á¤ºÉ ° œµ—˜´ª°¥µŠn (n)
Ášµ„ n ´ 120
n p a M Percent of cut-off point CI.Lower CI.Upper
0 43.49 0.1332 0.7200
0.33 43.42 0.1446 0.7304
0.67 41.71 0.1029 0.7350
0.1
0.99 42.32 0.1597 0.7116
0 46.93 0.2758 0.6600
0.33 45.83 0.2528 0.6775
0.67 45.76 0.2320 0.7149
0.5
0.99 43.74 0.1780 0.7149
0 42.48 0.2024 0.6838
0.33 41.37 0.1547 0.6910
0.67 39.92 0.1319 0.6843
120 4
0.9
0.99 41.67 0.1532 0.6955
‹µ„˜µ¦µŠš¸É 2 Á¤ºÉ° œµ—˜´ª°¥µŠn , ‹Îµœªœ˜´ªÂž¦°· ¦³Â¨³´—ªœ °Šn ‡ªµ¤¨o¤Á®¨ª °Š¨´„¬–³š¸É œÄ‹«¹ „¬µ
‡Šš¸É ¡ªµÁ¤ºÉ °´—ªœ °Š‡ªµ¤¨o¤Á®¨ª °Š¨´„¬–³š¸É œÄ‹«¹„¬µ¤¸‡µÁšµ„ n n n n ´ 0.5 ¨³¦³—´‡ªµ¤´¤¡´œ›r¦³®ªµŠn ˜´ª
ž¦°· ¦³¤¸‡µÁ¡·¤ ¹œ n É Ê Ã—¥ªœÄ®‡µn n n ¦o°¥¨³ °Š‹» —Š‹³¤¸‡µ¨—¨Š ¨³ n n Á¤ºÉ °´—ªœ °Š‡ªµ¤¨o¤Á®¨ª °Š¨´„¬–³š¸É n
œÄ‹«¹„¬µ¤¸‡µ°ºÉ œÇ n ×¥ªœÄ®‡µn n n ¦o°¥¨³ °Š‹»—Š‹³¤¸‡µ¨—¨Š n n ‹œ™¹ Š¦³—´‡ªµ¤´¤¡´œ›r¦³®ªµŠn ˜´ªÂž¦°· ¦³
Ášµ„n ´ 0.67 ¨³‹³Á¡·¤ ¹ œÁ É Ê ¨È„œo°¥Á¤ºÉ°¦³—´‡ªµ¤´¤¡´œ›r¦³®ªµŠ˜´ªÂž¦°· ¦³¤¸‡µ¼ Š ¹œ n n Ê
˜µ¦µŠš¸É 3: —Š‡µ¦o°¥¨³ °Š‹» —Š n n Á¤ºÉ °‹Îµœªœ˜´ªÂž¦°· ¦³ (p) Ášµ„n ´ 2 ˜´ª Ž¹É Š¤¸‡ªµ¤´ ¤¡´œ›r„œ´ ¨³Å¤¤¸n
‡ªµ¤´¤¡´œ›r„œ´ (M) ¨³Á¤ºÉ°´—ªœ °Š‡ªµ¤¨o¤Á®¨ª °Š¨´„¬–³š¸É œÄ‹«¹„¬µ n (a) ¤¸ ‡µÁšµ„ n n ´ 0.1, 0.5 ¨³ 0.9 ×¥
‹ÎµÂœ„˜µ¤ œµ—˜´ª°¥µŠn (n)
p a M n Percent of cut-off point CI.Lower CI.Upper
40 67.41 0.3487 0.8629
60 63.58 0.3014 0.8539
80 57.30 0.2840 0.7812
100 51.02 0.2490 0.7239
2 0.1 0
120 48.00 0.2400 0.7086