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15 1 Sample Wilcoxon Test(Chinese)


1 Sample Wilcoxon Test
NCC K.Nishijima ’03-Aug-9 1

1 Sample Wilcoxon Test
?例如在2台测定机上测相同工件时、和由2为作业员测定时、确 认测定机有无差、或者作业员有无差时使用1 Sample Wilcoxon Test。
这鉴定是比较2个测定值的差的分布的

中心和 “0” 。 ?1 Sample Wilcoxon Test是2个测定值的差的分布不成正态分布时使用。

2

1 Sample Wilcoxon Test
●How to use Minitab

点击1-Sample Wilcoxon

3

1 Sample Wilcoxon Test
●How to use Minitab

在Variables:中输入Δ(X1-X2)的列。

选择Test median:、输入0。 在Alternative:中选择not equal。 点击OK。 4

1 Sample Wilcoxon Test
●Session summary
Wilcoxon Signed Rank Test: 1-2 Test of median = 0.000000 versus median not = 0.000000 N for Test 20 Wilcoxon Statistic 126.0 Estimated Median 0.2365

1-2

N 20

P 0.444

P-Value在0.05以上的各个值的差的中心值和0无有意差。 5

1 Sample Wilcoxon Test
●How to use Minitab ●概要
?Stat → Nonparametrics → 1-Sample Wilcoxon ?在Variables:中输入Δ(X1-X2)的列。

?选择Test median:、输入0。
?在Alternative:中选择not equal。 ?点击OK。

6


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