4.(1)设样本x1,x2,···,X6来自总体N(0,1), =(({X)_(1)+(X)_(2)+(X)_(3))}^2+-|||-(({X)_(4)+(X
设样本X1,X2,X3,X4,X5来自总体N(0,1),设样本X1,X2,X3,X4,X5来自总体N(0,1),设样本X1,X2,X3,X4,X5来自总体N(0
4.(1)设样本x1,x2,···,X6来自总体N(0,1), =(({X)_(1)+(X)_(2)+(X)_(3))}^2+((X)_(4)+-|||-_(5
设总体X~ N(0,1),X1 , X2,…, X6为来自总体X的样本,=(({X)_(1)+(X)_(2)+(X)_(3))}^2+(({X)_(4)+(X)
4.(1)设样本X1,X2,···X6来自总体N(0,1), =(({X)_(1)+(X)_(2)+(X)_(3))}^2+((X)_(4)+-|||-_(5)
设X1,X2,6,X6来自总体N(0,1), =(({X)_(1)+(X)_(2)+(X)_(3))}^2+(({X)_(4)+(X)_(5)+(X)_(6))
4.(1)设样本X1,X 2,···,X6来自总体N(0,1), =(({X)_(1)+(X)_(2)+(X)_(2))}^2-|||-+(({x)_(4)+(
(2)设样本X1,X2,···,X5来自总体N (0,1), =dfrac (C({X)_(1)+(X)_(2))}({({{X)_(3)}^2+({X)_(4
(2)设样本X1,X2,···,X5来自总体N (0,1), =dfrac (C({X)_(1)+(X)_(2))}({({{X)_(3)}^2+({X)_(4
设样本 X1,X2,···, times 6来自总体X1,X2,···, times 6, 试确定常数X1,X2,···, times 6 使 X1,X2,··