-sS+s +ss 检验统计量 y1=μ+T1+81,y1=+B1+8jy…=+8 ESS=E∑∑(+B=B) b∑2+(a-1( ) ( ) 2 i 2 i i j 2 i. .. A i .j .. .j j i. i. i A B e b a 1 ESS E y y y.. SS SS SS =  + −         =  +  −  =  +  +  =  +  +  =  +  = + +   检验统计量