单个总体方差差异的U统计量检验法

摘要

A method about testing variance differences of a single population was constructed based on U-statistics. This method, compared with the x testing, can be applied to more general situations, and its asymptotic relative efficiency is 1.%给出一种利用非参数统计中U统计量构造检验单个总体方差差异的方法,与χ2检验法相比,该方法不仅适用于更宽泛的场合,而且其渐近相对效率为1.