basically i have a statistic problem of a basic function that i have not been told, taught and could not find on the internet. We are given a random samples of size, with the means and variances given, i then have to find the mean and standard deviation of the sampling distribution of the sample mean.
for example n = 64 μ = 13, σ^2 = 9 i then have to find σ and its not just the square root of 9
any anon who could help me out?