a. Describe the distribution of sample means (shape, mean, standard error) for samples of n 5 64 selected from a population with a mean of m = 90 and a standard deviation of s = 32 b. Under what...

a. Describe the distribution of sample means (shape, mean, standard error) for samples of n 5 64 selected from a population with a mean of m = 90 and a standard deviation of s = 32

b. Under what circumstances is the distribution of sample means definitely a normal distribution?