[商管] 統計內插法查表
想請問統計使用內插法的時機
case.1 常態分配 求尾點
(尾點) (機率)
1.64 0.4495
x 0.45
1.65 0.4504
此時我會用(x-1.64)/(1.65-1.64)=(0.45-0.4495)/(0.4504-0.4495)
反求x來找出尾點
case.2 T分配 求尾點
(尾點) (自由度)
1.341 15
x 13
1.372 10
此時我會用(x-1.341)/(1.372-1.341)=(13-15)/(10-15)
反求x來找出尾點
case.3 T分配 求自由度
(尾點) (自由度)
1.303 40
1.3 x
1.299 50
此時我會用(x-40)/(50-40)=(1.3-1.303)/(1.299-1.303)
反求x找出自由度
我想請教內插法以上3種case都能用嗎?
總結來說 用內插法反求尾點,自由度,機率都適用?
感謝
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