【摘要】 <正> 在医学科学研究中,要求两种不同目的的统计推断:一种是检验甲处理(比如某种药物,某种检验方法)和乙处理(比如安慰剂,或另一种检验方法)有无差别?这类问题我们更多还原

【Abstract】 An equivalence design is used in many medicalstudies in which the purpose is to test whether ef-fectiveness of experimental group is same as a sta-ndard control group.In this paper the methods ofequivalence test for 2×2 tables have been presentedincluding Chi square test;U test as well as samplesize for this design.The defference between the con-ventional Null Hypothesis and the Hypothesis of aspecified difference for equivalence test were discu-ssed.更多还原