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关于t检验方差分析及多重比较的研究
引用本文:冯变英,张旭,张春枝.关于t检验方差分析及多重比较的研究[J].太原师范学院学报(自然科学版),2012(4):59-61.
作者姓名:冯变英  张旭  张春枝
作者单位:运城学院应用数学系;上海师范大学数理学院;山西省工贸学校
基金项目:山西省普通本科高等教育教学改革研究项目(2009-315);运城学院科研基金项目(JY-2011031);运城学院教学改革项目(2012-05)
摘    要:在对均值是否有显著差异进行检验时,t检验和方差分析有时是等价的,有时是不可替代的.检验H0.μ1=μ2vsH1:μ1≠μ2时,t检验与方差分析是等价的;检验H0:μ1≤μ2 vs H1:μ1≠μ2或H0:μ1≥μ2 VS H1:μ1〈μ2时,只能用t检验.检验H0:μ1=μ2=…=vsH1:μ1,μ2,…,μk不全等时,要用方差分析,而不能用两两比较的t检验.当检验结果为有显著差异时,再用多重比较的方法比较是哪些均值有显著差异.

关 键 词:t检验  方差分析  多重比较  FWER

Study on t Test , Analysis of Variance and Multiple Comparisons
Feng Bianying,Zhang Xu,Zhang Chunzhi.Study on t Test , Analysis of Variance and Multiple Comparisons[J].Journal of Taiyuan Normal University:Natural Science Edition,2012(4):59-61.
Authors:Feng Bianying  Zhang Xu  Zhang Chunzhi
Institution:1.Department of Applied Mathematics,Yuncheng University,Yuncheng 044000;2.Mathematics Science College,Shanghai Normal University,Shanghai 200234;3.Shanxi Industry and Trade College,Taiyuan 030021,China)
Abstract:The t test and analysis of variance: sometimes equivalent and sometimes irreplaceable while if the means have significant difference are tested. If H0 :μ1 =μ2 vs H1 :μ1≠μ2 is tested, t test and analysis of variance is equivalent. If H0 :μ1≤ μ2 vs H1 :μ1 〉μ2 or H0 :μ1≥ μ2 vs H0:μ1〈 μ2 is tested,t test only is used. When H0 :μ1 =μ2 =^…=μk vs H1 :μ1 ,μ2 ,… μk incongruent is tested,analysis of variance should used,but t test can't be used. When k means have significant difference, then multiple comparison method is used to compare which means have significant difference.
Keywords:t test  analysis of variance  multiple comparisons
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