两个具有名义指标总体分布相等的检验

The test for the equality of the probability distribution of two populations with nominal scales

根据Ridit检验思想方法进行数据变换,并利用K-S检验原理给出了检验两个名义指标总体概率分布相等的检验方法.其本质是存在两个具有名义指标的统计总体,且通过抽样得到两个频率直方图,再通过频率直方图来检验这两个总体分布是否相等的问题.

This paper makes data transformation on the method of Ridit test and provides a method for testing of equaling on the overall distribution of two indicators with name index using the principle of K-S test.The nature of this problem is that two overall statistics with index name are needed,and a frequency histogram is get from statistical sampling.Through the frequency histogram the equaling on the overall distribution is tested.