摘要
通过样本方差对总体方差估计时产生的误差分析，得出估计总体方差时样本容量的选取方法。
To make use of the error analysis which appears when the population variance is estimated by the sample variance. to obtain the method of selecting the sample quantity when the population variance is estimated
出处
《数理统计与管理》
CSSCI
北大核心
1993年第6期42-45,共4页
Journal of Applied Statistics and Management
关键词
总体方差
样本方差
样本容量
估计
population variance、sample variance、sample quantity、 error
