胡良平.如何正确运用Z检验——两率比较一般差异性Z检验及SAS实现[J].四川精神卫生杂志,2020,(5):431-435.
如何正确运用Z检验——两率比较一般差异性Z检验及SAS实现
How to use Z test correctly——comparison of two population rates for the general difference Z test and the SAS implementation
投稿时间:2020-09-16  
DOI:10.11886/scjsws20200916006
中文关键词:  总体率  正态分布  二项分布  卡方分布  Z检验  精确检验
英文关键词:Population rate  Normal distribution  Binomial distribution  χ distribution  Z test  Exact test
基金项目:
作者单位邮编
胡良平 军事科学院研究生院北京 100850
世界中医药学会联合会临床科研统计学专业委员会北京 100029 
100029
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中文摘要:
      本文介绍了用Z检验进行率比较的原理、方法和SAS实现。包括一个未知总体率与一个已知总体率比较的Z检验和两未知总体率比较的Z检验。在SAS实现方面,采取了两种途径:①基于计算公式,用SAS语言编程;②直接借助SAS中的“FREQ过程”。
英文摘要:
      The paper introduced the principles, methods and SAS implementation of the comparison of the rates by using the Z test, including Z test for the comparison of an unknown population rate with a known population rate and Z test for the comparison of two unknown population rates. In the aspect of SAS implementation, two measures were taken as below: the first was writing SAS program by using SAS language based on the calculation formula, the second was directly applying the procedure FREQ in SAS software.
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