Testing the variance of symmetric heavy-tailed distributions

被引:3
|
作者
Lee, SJ [1 ]
Sa, P [1 ]
机构
[1] UNIV N FLORIDA,DEPT MATH & STAT,JACKSONVILLE,FL 32224
关键词
Edgeworth expansion; type I error rate; symmetric heavy-tailed distribution; positive coefficient of kurtosis;
D O I
10.1080/00949659608811779
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Currently, the most commonly used test of a single variance is the chi-square test when the population is normal. In this article, a new test procedure is proposed for the upper-tailed test for the variance of any symmetric heavy-tailed populations. Edgeworth expansion is used to derive the new test statistic. A Monte Carlo study investigates the properties of the new procedure for a variety of symmetric heavy-tailed distributions. It is shown that the new test yields controlled type I error rates as well as good power performances when the sample size is moderate or large.
引用
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页码:39 / 52
页数:14
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