[機統] T分配查表
比如說
t0.025 (9) = 2.262
要怎麼不用t表 而用z表查到呢?
謝謝
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※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 180.176.136.3
推
09/13 10:55, , 1F
09/13 10:55, 1F
→
09/13 10:57, , 2F
09/13 10:57, 2F
推
09/13 10:58, , 3F
09/13 10:58, 3F
→
09/13 10:59, , 4F
09/13 10:59, 4F
還是說可以不用用T分配...
我給一下題目好了
在一條河的10個點取水各1公升,計算含氧量,標準差0.8毫克,平均數4.6毫克,是否顯示
這條河的平均含氧量低於每公升5毫克?計算p-value
我是算 (4.6-5)/(0.8x10^0.5) = -1.581
t_p(9) = -1.581 再去查T表得p值
他只給z表我就不知怎算了orz
※ 編輯: karfeon 來自: 180.176.136.3 (09/13 11:11)
推
09/13 15:00, , 5F
09/13 15:00, 5F
→
09/13 15:59, , 6F
09/13 15:59, 6F
→
09/13 16:09, , 7F
09/13 16:09, 7F
推
09/13 16:53, , 8F
09/13 16:53, 8F
→
09/13 16:54, , 9F
09/13 16:54, 9F
→
09/13 16:54, , 10F
09/13 16:54, 10F
推
09/13 18:56, , 11F
09/13 18:56, 11F
→
09/13 22:17, , 12F
09/13 22:17, 12F
→
09/13 22:18, , 13F
09/13 22:18, 13F
推
09/13 23:22, , 14F
09/13 23:22, 14F
→
09/13 23:24, , 15F
09/13 23:24, 15F
→
09/13 23:25, , 16F
09/13 23:25, 16F
推
09/14 01:39, , 17F
09/14 01:39, 17F
→
09/14 01:41, , 18F
09/14 01:41, 18F
→
09/14 01:41, , 19F
09/14 01:41, 19F
→
08/13 17:05, , 20F
08/13 17:05, 20F
→
09/17 15:00, , 21F
09/17 15:00, 21F