推 ksherry:沒給表就sign test吧 11/10 02:03
※ 引述《jackoyu (偉下列資料正確填寫並回숩》之銘言：
: In nuclear physis detectors are often used to measure the rnergy of a
: particle. To calibrate a detrctor, particles of known energy are directed
: into a detector. The values od signals from 15 gifferent detectors, for
: the same energy, are as follows:
: 260,216,259,206,265,284,291,229,232,250,225,242,240,252,236
: Are these detectors doing a good job or a poor job of putting out the same
: signal for the same input energy?
: 請問各位此題該如何著手，好像沒有檢定值? 謝謝!!
Wilcoxon 符號等級檢定
先將資料排序
206 216 225 229 232 236 240 242 250 252 259 260 265 284 291
題意:檢定是否位相同母體
1. Ho: 中位數=242(輸出相同訊號) Ha:非Ho
2. Di= X-242
D= -36 -24 -17 -13 -10 -6 -2 0 8 10 17 18 23 42 49
rank 12 11 7.5 6 4.5 2 1 3 4.5 7.5 9 10 13 14
W-=44 W+=61 Min(W(-),W(+))=44
查 W(14.0.025)=21 < 44 ====> 不拒絕Ho
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◆ From: 114.39.178.15
※ 編輯: pushfish 來自: 114.39.178.15 (11/10 00:19)