Huang Huijie,Liu Yuanyuan,Li Changping,Hu Liangping,How to use t test correctly——comparison of parameter and 0 t test in the linear regression model and SAS implementation[J].SICHUAN MENTAL HEALTH,2020,33(4):307-312

How to use t test correctly——comparison of parameter and 0 t test in the linear regression model and SAS implementation

DOI：10.11886/scjsws20200717004

English keywords:Simple linear regression Multiple linear regression Parameter Test statistics t test

Fund projects:国家自然科学基金项目（项目名称：贝叶斯生存分析方法在肝细胞癌肝移植患者预后预测中的应用研究，项目编号：81803333）

Author Name	Affiliation	Postcode
Huang Huijie	School of Public Health, Tianjin Medical University, Tianjin 300070, China	300070
Liu Yuanyuan	School of Public Health, Tianjin Medical University, Tianjin 300070, China	300070
Li Changping	School of Public Health, Tianjin Medical University, Tianjin 300070, China Specialty Committee of Clinical Scientific Research Statistics of World Federation of Chinese Medicine Societies, Beijing 100029, China	100029
Hu Liangping	Specialty Committee of Clinical Scientific Research Statistics of World Federation of Chinese Medicine Societies, Beijing 100029, China Graduate School, Academy of Military Sciences PLA China, Beijing 100850, China	100850

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English abstract:

The purpose of this paper was to introduce the theoretical basis and application practice of t test when comparing the difference between parameters and 0 in simple linear regression analysis and multiple linear regression analysis.Firstly,this paper introduced the basic principle and calculation formula of t test in linear regression analysis. Then the simple linear regression analysis and multiple linear regression analysis of two examples were carried out by SAS program.In the output results, readers should draw attention to the name and results of test statistics of the parametric hypothesis testing. Finally,the results was explained and discussed.

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