Thread: Comparing Variances of the Sample Means

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?

Hey SC313.

What do the N's refer to? (Are you dealing with finite populations as opposed to infinite ones)?

Originally Posted by chiro

Hey SC313.

What do the N's refer to? (Are you dealing with finite populations as opposed to infinite ones)?

Hi Chiro!

N is the population size .

And the populations are finite!

Thanks!

Take a look at this:

http://www.et.bs.ehu.es/~etptupaf/nu...n/muestreo.pdf