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Webb4. 匹配后均衡性比较对于匹配后的协变量均衡性比较应该遵守两个原则: 评价方法应该是针对样本而不是总体仔细想想,倾向性评分匹配实际上是从一个随机获得的有代表性样本中再“挑”出一部分进行分析,这时候再去通过“挑出来样本”去推断最开始的总体,显然已经不合适 … Webb推论统计(inferential statistics)是借助抽样调查,从局部推断总体,以对不肯定的事物做出决策的一种统计。有总体参数估计与假设检验两种。前者以一次性抽样实验为依据,对整个总体的某个数字特征做出估计。后者则是对某种假设进行检验,根据计算结果推断所做的假设是否可以接受。如平均数 ... cycle bearing grease
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