二阶段整群抽样的样本大小估计公式及其在医疗费用调查中的应用  

The method to estimate the sample sizes for two-stage cluster sampling and its application in survey study of theatment cost

作　　者：高歌[1] 汤旦林[2] 

机构地区：[1]同济大学医学院,上海200070 [2]中日友好医院,北京100029

出　　处：《数理统计与管理》2002年第5期1-3,46,共4页Journal of Applied Statistics and Management

摘　　要：本文利用哥西不等式原理及求极小值方法 ,在限定抽样误差的大小使调查花费最小及限定调查花费的大小使抽样误差最小两种情况下 ,对常用的二阶段整群抽样 ,推导出其最优样本大小计算公式 ,在中国铁路职工医疗费用的调查中取得了成功的应用。The minimun method and the Cauchy-Schwarz inequality were applied,the authors deduced the formulate of the optimum sample sizes to minimize the costs of taking the samples for specified values of the sampling errors and to minimize the sampling errors for specified costs for two-stage cluster sampling.The formulate were employed successfully in survey study of China Railway′s staff about theatment cost.

关 键 词：二阶段整群抽样 样本大小估计公式 调查设计 医疗费用 

分 类 号：O212.1[理学—概率论与数理统计] R195.1[理学—数学]