If X and S 2 are the mean and variance if a random sample of size n from a normal population
with mean and standard deviation , then X and S 2 are independent. The r v 2 ( n 1 ) S 2 2 ( n 1 ).
If X and S2 are the mean and variance if a random sample of size n fro.pdf
1. If X and S 2 are the mean and variance if a random sample of size n from a normal population
with mean and standard deviation , then X and S 2 are independent. The r v 2 ( n 1 ) S 2 2 ( n 1 )