yes that was actually what I wanted to know.
So, I must suppose that there's no closed form for Gaussian and Chi Square distributions?
I haven't tried myself yet.
S
I am trying to find an ANALYTICAL way to extract a critical value from a generic distribution. I need a way to find it analytically because I am trying to find a relationship between the critical values.
I always find methods that depends on the distribution tables, but I would like to know...