Kuma
Jan28-12, 03:52 PM
Given X and Y distributed Np(u1, sigma/n1) and Np(u2, sigma/n2) and are independently distributed I'm trying to find the distribution of:
Z = X-Y
I don't think the linear combination of variables applies here because X and Y are both random vectors, I'm stuck on trying to find the joint mean and joint sigma.
Z = X-Y
I don't think the linear combination of variables applies here because X and Y are both random vectors, I'm stuck on trying to find the joint mean and joint sigma.