Probability and Samples


New Member
A random sample of n=16 is selected from a normal distribution of a mean of 50 and standard deviation of 10

*what is the probability that the sample mean will have a value between 45-55?

I am having a hard time figuring out how to even get started and what formula to use to find the answer. My book is so confusing. Can you please just help me with the steps to figure out the answer.