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两总体的统计检验及其在刑事技术中的应用
Statistics Test of Two-population Problem and It’s Application in Forensic Science
【摘要】 文献[3]给出了双样本协方差矩阵检验的统计量λ及其概率密度函数f(λ),但由于f(λ)的计算相当复杂,其分位数表又尚未算出,无法实用,本文采用统计模拟的方法给出了λ的经验分布,由此计算出λ的上100α%分位数表,最后给出了刑事技术中的两个应用实例
【Abstract】 Literature [3] described statistic in the test of covariance matrices of two samples and provided its density function f (λ). Since the density function is too complex, and the significance point table has not been given, the approach cannot be used in practice. This paper, on the basis of simulation, calculates the experience distribution of λ. Finally the tables of upper 100α% significance point and two practical examples in forensic technique are given.
- 【文献出处】 北方工业大学学报 ,JOURNAL OF NORTH CHINA UNIVERSITY OF TECHNOLOGY , 编辑部邮箱 ,1998年03期
- 【分类号】O212.2
- 【下载频次】24