t检验和χ~2检验分别是定量和定性数据分析中最简单和最常用的统计分析方法。t检验主要用于两组数值型数据平均水平的比较,χ2检验主要用于率和构成比的比较。数据分析过程中,这两种方法非常容易误用。现对这两种方法的应用和常见问题展开讨论。1t检验t检验分为单样本t检验、配 The t-test and χ~2 test are the simplest and most commonly used statistical analysis methods in quantitative and qualitative data analysis, respectively. The t test is mainly used to compare the average level of the two sets of numerical data, and the χ2 test is mainly used to compare the rate and the composition ratio. In the data analysis process, these two methods are very easy to misuse. Now we will discuss the application of these two methods and common problems. 1t test t test is divided into single sample t test, with