The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n = 70, find the probability of a sample mean being greater than 218 if u=217 and a 3.5 For a sample of n = 70, the probability of a sample mean being greater than 218 if u 217 and a 3.5 is (Round to four decimal places as needed)