Who gets paid during a federal shutdown? The president and Congress continue to get paid, as their salaries are ...

Arctic Circle makes a point that has long bedeviled me, because I don’t live on the seaside. I also don’t toss away a lot of ...

方差分析中的元和因素 试验中要考察的指标称为 试验指标 ，影响 试验指标的条件称为因素 ，因素所处的状态称为 水平 (通常用于3个或更多水平时；如果只有2个水平考虑 T-test);若试验中只有一个因素 改变则称为 单因素试验，若有两 ...