Hu Chunyan,Hu Liangping,How to use Z test correctly——comparison of two population rates for the non-inferiority Z test and the SAS implementation[J].SICHUAN MENTAL HEALTH,2020,33(6):510-513

How to use Z test correctly——comparison of two population rates for the non-inferiority Z test and the SAS implementation

DOI：10.11886/scjsws20201119001

English keywords:Population rate Normal distribution Non-inferiority test Non-inferiority dividing value

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Author Name	Affiliation	Postcode
Hu Chunyan	Graduate School， Academy of Military Sciences PLA China， Beijing 100850， China	100850
Hu Liangping	Graduate School， Academy of Military Sciences PLA China， Beijing 100850， China Specialty Committee of Clinical Scientific Research Statistics of World Federation of Chinese Medicine Societies， Beijing 100029， China	100029

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English abstract:

The paper introduced the principles， methods and SAS implementation of the comparison of two population rates by using the non-inferiority Z test. Two special titles were involved as follows： one was to introduce the principles and methods of the non-inferiority Z test for the comparison of two population rates， the other was to implement the non-inferiority Z test for the comparison of two population rates based on the SAS software. The SAS output results were presented and explained， and also the statistical conclusions as well as the professional conclusions were given in this paper.

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