| 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,2020,33(5):431-435.Hu Liangping,How to use Z test correctly——comparison of two population rates for the general difference Z test and the SAS implementation[J].SICHUAN MENTAL HEALTH,2020,33(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 χ２ distribution Z test Exact test |
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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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