Answer to Question #319381 in Statistics and Probability for Bony

Question

Consider a population which is normally distributed.If the variance of the population is 9 and n=9,what is the variance of the sampling distribution of sample means

Answer 1

$\sigma$²_m=$\sigma$²/N

$\sigma$²=9

N=9

$\sigma$²_m =The variance of the sampling distribution of sample means

$\sigma$²_m=9/9

$\sigma$²_m=1