# Ansari-Bradley test (PR#2252)

**wex00002@uconn.edu
**
wex00002@uconn.edu

*Sun, 3 Nov 2002 23:38:21 +0100 (MET)*

Full_Name: Wei Xu
Version: 1.5.1
OS: WindowsME
Submission from: (NULL) (63.215.238.92)
The P-value for a two.sided test is not consistent with the confidence
interval.
For example, P-value=0.1372, but the 95% CI doesn't include the H0 value(1).
>* x
* [1] 0.80 0.83 1.89 1.04 1.45 1.38 1.91 1.64 0.73 1.46
>* y
*[1] 1.15 0.88 0.90 0.74 1.21
>* ansari.test(x,y,alternative="two.sided",conf.int=TRUE,conf.level=0.95)
*
Ansari-Bradley test
data: x and y
AB = 36, p-value = 0.1372
alternative hypothesis: true ratio of scales is not equal to 1
95 percent confidence interval:
1.081081 2.581081
sample estimates:
ratio of scales
1.972973
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