对于<img src="https://img.ppkao.com/2019-04/wangxuan/2019041115500972786.jpg" />,如果原模型满足线性模型的基本假设则在零假设下<img src="https://img.ppkao.com/2019-04/wangxuan/2019041115503019088.jpg" />,统计量<img src="https://img.ppkao.com/2019-04/wangxuan/2019041115504349282.jpg" />(其中<img src="https://img.ppkao.com/2019-04/wangxuan/2019041115505472761.jpg" />是<img src="https://img.ppkao.com/2019-04/wangxuan/2019041115510383326.jpg" />的标准误差)服从()。<p> 对于<img src="https://img.ppkao.com/2019-04/wangxuan/2019041115500972786.jpg" />,如果原模型满足线性模型的基本假设则在零假设下<img src="https://img.ppkao.com/2019-04/wangxuan/2019041115503019088.jpg" />,统计量<img src="https://img.ppkao.com/2019-04/wangxuan/2019041115504349282.jpg" />(其中<img src="https://img.ppkao.com/2019-04/wangxuan/2019041115505472761.jpg" />是<img src="https://img.ppkao.com/2019-04/wangxuan/2019041115510383326.jpg" />的标准误差)服从()。</p>
A、A.t(n-k)
B、B.t(n-k-1)
C、C.F(k-1,n-k)
D、D.F(k,n-k-1)