Solve the below:
Q: Suppose that x has a distribution with μ= 72 and σ= 8.
(a) If random samples of size n = 16 are selected, can we say anything about the si distribution of sample means?
(b) If the original x distribution is normal, can we say anything about the x distri-bution of random samples of size 16? Find P(68 ≤ x‾≤ 73)