摘要
利用多元中心极限定理,证明了两个正态分布变异系数差具有渐近正态性,从而给出了一种新的检验两个正态总体变异系数差异的方法.
By applying multiple central limit theorem, it's proved that difference of variation coefficient of two normal distribution is asymotic normality. Thus, a new method of hypothesis testing about difference of variation coefficient of two normal distribution is given.
出处
《吉林师范大学学报(自然科学版)》
2009年第4期85-86,89,共3页
Journal of Jilin Normal University:Natural Science Edition
基金
吉林省教育厅"十一五"科学技术重点研究项目(吉教科合字[2007]-152)
关键词
变异系数差
多元极限定理
渐近正态性
difference of variation coefficient
multiple central limit theorem, asymotic normality