Abstract：In sampling, the proper sample size must be clearly defined in making a plan. The objectives of sample size determination are： to ensure estimation accuracy and test efficacy; to better draw the statistic map; and to minimize opportunity losses and sampling cost. Therefore, such factors must be taken into account in determining sample size as follow： internal variability of investigated population; statistic distribution of population; sampling with replacement or without replacement; data measuring scale.
耿修林 . 抽样规模确定的目标及影响因素[J]. 江苏大学学报（社会科学版）, 2009, 11(4): 84-87.
Geng Xiulin . On the Goal and its Factors of Sampling Size Determination. Journal of Jiangsu University（Social Science Editi, 2009, 11(4): 84-87.
[1]Cochran,W.G.Sampling Techniques[M].New York:John Wiley ＆ Sons,1997:100-109. [2]Shih,W.J.Sample Size Re-esitmation:Journey for a Decade[J].Statistics in Medicine,2001,20:515-518. [3]Stuger,H.P.Asymmetric Loss Functions and Sample Size Determination:A Bayesian Approach[J].Austrian Journal of Statistics,2006,35:57-66. [4]Gould,A.L.Sample Size Re-estimation:Recent Developments and Practical Considerations[J].Statistics in Medicine,2001,20:2625-2643. [5]扎库拉·戈文达拉玉卢.抽样理论与方法[M].北京:机械工业出版社,2005.. [6]冯士雍 倪加勋 邹国华.抽样调查理论与方法[M].北京：中国统计出版社,1998.. [7]奥特R L 朗格内克M 张忠占 等译.统计学方法与数据分析引论[M].北京:科学出版社,2003.. [8]孙山泽.抽样调查[M].北京:北京大学出版社,2004.1-12.
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