摘要
样本容量的确定是抽样调查中的一个重要内容.本文根据精度与费用之间的关系,利用求多元函数条件极值的方法,确定当第一级抽样为有放回PPS抽样,第二级抽样为简单随机抽样时,二阶抽样的样本容量最优分配.
Sample size determination of survey sampling is an important element. Based on the precision and the cost of the relationship between the use of conditional extremum for the function of several variables method to determine when the first sample for sampling with probability proportion to size, the second-simple random sampling, the two-stage sampling is optimal allocation.
出处
《三明学院学报》
2008年第2期134-137,共4页
Journal of Sanming University
基金
三明学院基础数学优势学科资助项目(YSXK0603)
关键词
二阶抽样
样本容量
费用
精度
two-stage sampling
sample size
cost
precision
