二样本问题的假设检验法及其应用

介绍了二样本问题的一种新假设检验方法（SR检验）,SR检验用来探讨如何利用由两连续且相互独立的样本总体中随机抽取的两组独立样本来做假设检验.原理是将二样本差的符号值乘上二样本差加上绝对值后排列的序值（即秩）,取其和为检验统计量,这样就考虑了二样本差的权重以便充分利用收集到的样本所提供的信息比较二样本中位置的关系,并且比较由不同分布的样本总体抽出的样本做出的统计量,用Matlab做模拟比较,提供使用者在非参数统计方法中的另一个选择。

Hypothesis Test Method of Two Samples Problem and Application

his paper discusses a median test for two continuous populations with similar variance structure from which samples are independently drawn. We take the sign of the difference of two observations to multiply,its ordered rank after applying the absolute value operation to the difference. Our method takes into account weighing the differences of these observations in order to make better use of the embedded information in the sample. We also use Matlab software to simulate the resulting test statistics from simulation studies. Our test can serve as an alternative nonparametric analysis in the field of two-population median test problems.