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?
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