X1,.Xn and Y1,.„Yn are two random samples selected from independent normal distributions with variances Var(X)=s2 and Var(Y)=2s2, respectively o2>0. 2U+V U = E-(X –- X)² ve V = En (Y, – Y)? has been...

Extracted text: X1,.Xn and Y1,.„Yn are two random samples selected from independent normal distributions with variances Var(X)=s2 and Var(Y)=2s2, respectively o2>0. 2U+V U = E-(X –- X)² ve V = En (Y, – Y)? has been defined . According to this information U = 202 Which of the following is the distribution of the random variable M? O A. t(2n-2) O B. x² (2(n-1)) O C. t(2n-1) O D. x² (2n-1)