https://zhuanlan.zhihu.com/p/26810566
https://blog.csdn.net/touristman5/article/details/56281887
https://support.minitab.com/zh-cn/minitab/18/help-and-how-to/statistics/basic-statistics/supporting-topics/basics/what-is-a-hypothesis-test/
https://blog.csdn.net/bitcarmanlee/article/details/52201858