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 221 if p = 220 and o = 5.7. For a sample of n = 70, the probability of a sample mean being greater than 221 if u = 220 and o = 5.7 is (Round to four decimal places as needed.) Would the given sample mean be considered unusual? The sample mean be considered unusual because it within the range of a usual event, namely within of the mean of the sample means