For random samples of size n = 16 selected from a normal distribution with a mean of m = 75 and a standard deviation of s = 20, find each of the following: a. The range of sample means that defines...

For random samples of size n = 16 selected from a normal distribution with a mean of m = 75 and a standard deviation of s = 20, find each of the following:

a. The range of sample means that defines the middle 95% of the distribution of sample means

b. The range of sample means that defines the middle 99% of the distribution of sample means