Assignment:
The mean=25 and the standard error=8. If samples of size n=16 are selected, can we say anything about the(x-bar)distribution of sample means? and if the original x distribution is normal, can we say anything about the (x-bar) distribution of random samples of size 16? Find p(68<=x-bar<=73).
Provide complete and step by step solution for the question and show calculations and use formulas.