最小方差线性无偏估计的存在性

EXISTENCE OF NO ERROR ESTIMATION FOR THE LEAST VARIANCE

本文对一般线性模型Y=xβ+ε进行研究,得到了cβ的最小方差线无偏估计存在的充要条件。

Owing to the studing of the normal liner models,Y=xβ+ε,the necessary condition of existence of no error estimation for the least varinrce of cp is obtained.