第七章：独立样本t检验与相关样本t检验

Chapter 7: Independent Sample T-test and Related Sample T-test

本章概览 (Guide)：

在之前的学习中，我们掌握了单样本t检验。在本章，我们学习了两样本t检验的方法。其中，独立样本t检验是在两样本互不相关的基础上进行的，而相关样本t检验的两样本之间存在匹配或前后比较关系。学会区分并应用这两种t检验方法，有助于我们判断两个样本之间是否存在显著差别。注意学习本章时，可以结合之前单样本t检验的内容进行对比学习。
In previous lectures, we have mastered the single sample T-test. In this chapter, we learned the method of two sample T-test. Among them, the independent sample t-test is conducted on the basis of two samples being uncorrelated, while the correlated sample T-test shows that there is a matching or comparison relationship between the two samples. Learning to distinguish and apply these two t-test methods can help us determine whether there is a significant difference between two samples. When studying this chapter, you can combine the content of the previous single sample t-test for comparative learning.

学习要点 (Learning Points)：

区分独立样本t检验与相关样本t检验
Distinguishing between independent sample t-test and correlated sample T-test
掌握独立样本t检验与相关样本t检验的逻辑
Master the logic of independent sample t-test and related sample T-test
学会计算独立样本与相关样本的t统计量
Learn how to calculate T-statistics for independent and related samples
学习独立样本t检验与相关样本t检验的统计前提
Statistical prerequisites for learning independent sample T-tests and correlated sample T-tests
掌握独立样本t检验与相关样本t检验的效应与效力
Master the effects and efficacy of independent sample T-tests and related sample T-tests

作业