假设检验、T检验

假设检验初步: https://cosx.org/2010/11/hypotheses-testing

t检验：https://mangowu97.github.io/%E5%82%BB%E7%93%9C%E5%BC%84%E6%87%82t%E6%A3%80%E9%AA%8C

One- and Two-Tailed Tests：http://onlinestatbook.com/2/logic_of_hypothesis_testing/tails.html

假设检验的基本原理和T检验：https://blog.csdn.net/lu839684437/article/details/71634283

Two-Tailed Test：https://www.investopedia.com/terms/t/two-tailed-test.asp

scipy.stats.ttest_1samp： https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.ttest_1samp.html

P-value：https://blog.csdn.net/trecn001/article/details/84329347

数据科学实践向--人力资源分析：https://www.jianshu.com/p/e7c91720f18e