【单选题】在多元方差分析中,SSE和SS(TR)之和等于总叉积矩阵SST。当SS(TR)在SST中占有较大的份额时,可以认为随机影响( ),不同试验间的观测值( )显著性差异。
【简答题】小题1:Who is organizing the party? A.The Evans Center on Erie Road. B.The New York City Fire Department. C.The Boys and Girls Club of Lake Shore. D.The New York City Hospital. 小题2:What is the cheapest w...
【判断题】“古尔邦”节是蒙古族一年一度的群众性盛会。
【简答题】“An independent technician” in the first sentence of the second paragraph means__. A) A technician who checks a car free of charge. B) A technician who learned his trade all by himself. C) A technicia...
【单选题】'An independent technician' in the first sentence of the second paragraph means______.
A.
a technician who checks a car free of charge
B.
a technician who learned his trade all by himself
C.
a technician who works for a particular car-dealer
D.
a technician who runs his own inspection service
【简答题】第二节 完形填空(共20小题;每小题1.5分,共30分) 阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。 Regardless of the weather or the distance, Paul Wilson will make sure low-income students in his neighbourhood arrive a...
【单选题】在多元方差分析中,叉积矩阵有SS(TR)、SSE和SST,下列描述正确的是( )。
B.
SS(TR)称为总叉积矩阵,反映全部数据的误差
C.
SSE称为组内叉积矩阵,反映系统因素引起的误差
D.
SS(TR)称为组间叉积矩阵,反映随机因素引起的误差