| 胡良平.如何正确运用Z检验——Z检验的基本概念与前提条件[J].四川精神卫生杂志,2020,33(5):418-421.Hu Liangping,How to use Z test correctly——the basic concepts and the preconditions of the Z test[J].SICHUAN MENTAL HEALTH,2020,33(5):418-421 |
| 如何正确运用Z检验——Z检验的基本概念与前提条件 |
| How to use Z test correctly——the basic concepts and the preconditions of the Z test |
| 投稿时间：2020-09-16 |
| DOI：10.11886/scjsws20200916003 |
| 中文关键词: Z检验 概率密度函数 分布函数 正态分布 线性参数统计模型 |
| 英文关键词:Z test Probability density function Distributional function Normal distribution Linear parametric statistical model |
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| 中文摘要: |
| 本文的目的是简要介绍与Z检验有关的基本概念和理论基础。基本概念涉及五个方面的内容：①何为Z检验；②何为正态分布；③Z检验的前提条件；④Z检验的适用场合；⑤Z分位数的适用场合。理论基础涉及两个方面的内容：正态分布与其他概率分布之间的关系以及正态分布可用于某些其他概率分布的近似计算。 |
| 英文摘要: |
| The purpose of this article was to briefly introduce the basic concepts and the theoretical fundamentals related to the Z test. The basic concepts involved to five contents as follows： Firstly， what is the Z test； Secondly， what is normal distribution； Thirdly， the preconditions of the Z test； Fourth， the occasion applicable of the Z test； Fifth， the occasion applicable of the Z quantile. The theoretical fundamentals were concerned with the following two aspects： one was the relationships between the normal distribution and the other probability distributions， the other was that the normal distribution could be applied to the approximate calculation for the other probability distributions. |
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