#6

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 =67, find the probability of a sample mean being less than 21.3 if p = 21 and 6 = 1.17. Click the icon to view page 1 of the standard normal table. Click the icon to view page 2 of the standard normal table. For a sample of n = 67, the probability of a sample mean being less than 21.3 if p = 21 and o = 1.17 is (Round to four decimal places as needed.) Would the given sample mean be considered unusual? The sample mean be considered unusual because it has a probability that is than 5%