Consider a large population with a mean of 150 and a standar

Consider a large population with a mean of 150 and a standard deviation of 27...

Consider a large population with a mean of 150 and a standard deviation of 27. A random sample of size 36 is taken from this population. The standard error of the sampling distribution of the sample mean is equal to

Solution

the standar error of the sampling distribution =(standard deviation)/(square root of sample size)

=27/(36)^1/2=27/6=4.5

so answer is B