OLS 中individual significance and overall signicance是什么关系？

感觉没有直接的关系的吧？ 一个是coefficient的signicance while the other is the regression's, am I right?

但individual significance 会不会影响 overall signicance的呢？

[此贴子已经被作者于2009-4-24 17:37:12编辑过]