Hey SC313.
What do the N's refer to? (Are you dealing with finite populations as opposed to infinite ones)?
Hi,
"Suppose that two populations have equal population variances but have different sizes: . Compare the variances of the sample means for a sample of size . Is it easier to approximate the mean of a smaller population?"
Where do I even begin?
Take a look at this:
http://www.et.bs.ehu.es/~etptupaf/nu...n/muestreo.pdf