(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+({X)_(5)}^2)}^1/2} ,试确定常数C使-|||-Y服从t分布.

参考答案与解析：

相关试题

(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+({X)_(5)}^2)}^1: (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

查看答案

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(0,1),设样本X1,X2,X3,X4,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

查看答案

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)+(X)_(6))}^2 ,试确定常数C: 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)

查看答案

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)+({x)_(6)}^2, 试确定常数: 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

查看答案

15.设总体 approx N(0,1), (X1,X2,X3,X4,X5,X6)为样本,另设-|||-=(({X)_(1)+(X)_(2))}^2+(({X)_(3)+(X)_(4))}^2+(({: 15.设总体 approx N(0,1), (X1,X2,X3,X4,X5,X6)为样本,另设-|||-=(({X)_(1)+(X)_(2))}^2+(({X)

查看答案

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)_(5)+(X)_(6))}^2,若CY: 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)

查看答案

10.设总体 sim N(0,1), X1,X2,X3是来自X的样本,则 =dfrac (sqrt {3)X}(sqrt {{{X)_(1)}^2+({X)_(2)}^2+({X)_(3)}^2}}-: 10.设总体 sim N(0,1), X1,X2,X3是来自X的样本,则 =dfrac (sqrt {3)X}(sqrt {{{X)_(1)}^2+({X)_(

查看答案

设x1,x2···,x5为来自总体x1,x2···,x5的样本，x1,x2···,x5，x1,x2···,x5，x1,x2···,x5与x1,x2···,x5分别为样本均值和样本方差，则x1,x2··: 设x1,x2···,x5为来自总体x1,x2···,x5的样本，x1,x2···,x5，x1,x2···,x5，x1,x2···,x5与x1,x2···,x5分

查看答案

5.设X1,X2,X3,X4是总体 sim N(0,1) 的简单随机样本,则 =dfrac (sqrt {3)(X)_(1)}(sqrt {{{X)_(2)}^2+({X)_(3)}^2+({X)_(: 5.设X1,X2,X3,X4是总体 sim N(0,1) 的简单随机样本,则 =dfrac (sqrt {3)(X)_(1)}(sqrt {{{X)_(2)}^

查看答案

(5)设样本x1,x2,···,x 6来自总体N(0,1), =(({X)_(1)+(X)_(2)+(X)_(3))}^2+-|||-(({X)_(4)+(X)_(5)+(X)_(6))}^2, 为使: (5)设样本x1,x2,···,x 6来自总体N(0,1), =(({X)_(1)+(X)_(2)+(X)_(3))}^2+-|||-(({X)_(4)+(X)

查看答案