摘要
对于随机抽样和非随机抽样,样本容量确定的思路有显著差异。在随机抽样的前提下,应首先定性地分析样本容量确定的影响因素,然后对精度和费用这两个可以量化的因素进行定量分析,并通过构建损失函数达到确定随机抽样样本容量之目的。
The thought pattern in determination of the sample size is different between random sampling and non - random sampling. For random sampling, firstly the influencing factors in determination of sample size should be qualitatively analyzed, secondly the two factors of precision and cost, which can be quantified, should be quantitatively analyzed. The sample size in random sampling can then be determined through forming the lost function.
出处
《山东财政学院学报》
2006年第5期60-64,共5页
Journal of Shandong Finance Institute
关键词
随机抽样
样本容量
损失函数
random sampling
sample size
lost function
