A population has a mean = 77 and a standard deviat December 28, 2016 By Essaypros A population has a mean = 77 and a standard deviation = 7. Find the mean and standard deviation of a sampling distribution of sample means with sample size n=49. We Deliver Top Quality On Time As Promised! Ready to get started? Just click the button to be directed to a secure page so you can enter the details of your paper.