A Stratification for Multiple Populations

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題名:	A Stratification for Multiple Populations
作者:	Chang, Horng-jinh;Shieh, Shuen-chin
貢獻者:	淡江大學經營決策學系
關鍵詞:	Hessian Matrix;Multiple Population;Neyman Allocatin;Optimum Stratification;Optimum stratification Points
日期:	1990-12-01
上傳時間:	2009-11-30 12:32:50 (UTC+8)
出版者:	Taipei : Graduate Institute of Management Science, Tamkang University
摘要:	An attempt will be made here to extend Dalenius'(1950) theory of univariate stratification for one population to multiple population. If k mutiple populations have the same or different domains, then they can be divided simultaneously into L strata according to the variable y under study. The gross population is composed of the k populations. The ith stratified simple random sample of size $n_i$ ia drawn from the ith population,i= 1, 2,...,k. The gross population mean is estimated by the k sample means. The variance of the gross sample mean will be taken as a measure. We will call a system of stratification, if it minimizes the variance of the sample mean. This paper will discuss the method for finding optimum stratification points for multiple populations under Neyman allocation. A numerical illustration is also given.
關聯:	International journal of information and management Sciences 1(2), pp.1-8
顯示於類別:	[管理科學學系暨研究所] 期刊論文 [資訊管理學系暨研究所] 期刊論文

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