作者pushfish (听天使在呢喃)
看板Grad-ProbAsk
标题Re: [商管] [统计]-逢甲98-统计与精算-检定
时间Tue Nov 10 00:15:00 2009
※ 引述《jackoyu (伟下列资料正确填写并回숩》之铭言：
: 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?
: 请问各位此题该如何着手，好像没有检定值? 谢谢!!
Wilcoxon 符号等级检定
先将资料排序
206 216 225 229 232 236 240 242 250 252 259 260 265 284 291
题意:检定是否位相同母体
1. Ho: 中位数=242(输出相同讯号) 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 ====> 不拒绝Ho
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◆ From: 114.39.178.15
※ 编辑: pushfish 来自: 114.39.178.15 (11/10 00:19)
1F：推 ksherry:没给表就sign test吧 11/10 02:03