As a customer walks into the branch office during the lunch hour, he asks the branch manager how long he can expect to wait. the branch manager replies, almost certainly less than 5 minutes." on the basis of the results of (a) through (c), evaluate the accuracy of this statement. choose the correct response below. a. since the mean and median are both greater than 5 minutes, the customer is likely to experience a waiting time in excess of 5 minutes.
b. since the range of values is greater than 5 minutes, the customer is likely to experience a waiting time in excess of 5 minutes.
c. since the standard deviation is less than 5 minutes, the customer is likely to experience a waiting time less than 5 minutes.
d. although both the mean and median are greater than 5 minutes, all values greater than 5 minutes have a z score greater than plus+3.0, thus they are outliers. this means the branch manager's statement is accurate