Samples of size 1000 from a population with mean 28 and standard deviation 5

If random samples of the given size are drawn from a population with the given mean and standard deviation:

(a) Find the mean and standard error of the distribution of sample means.
(b) If the sample size is large enough for the Central Limit Theorem to apply, draw a curve showing the shape of the sampling distribution. Include at least three values on the horizontal axis.