Hi everybody,
I encountered this to me very confusing problem in the context of confidence intervals and pivotal quantities.
How can I compute the mean and the variance (marked yellow) with this information below...
Many thanks once more!
Hi everybody,
I encountered this to me very confusing problem in the context of confidence intervals and pivotal quantities.
How can I compute the mean and the variance (marked yellow) with this information below...
Many thanks once more!
Hello,
The only random stuff in $\displaystyle \hat\theta_2$ is $\displaystyle x_i$. So if you treat everything else as a constant, it's pretty easy to compute the mean and the variance !
After that, it's just a matter of computing double sums
Let's try it !