Canon Business Solutions (CBS) is a division of Canon that sells and services Canon copiers to corporate customers. The length of the time a customer waits for a service call when a copier requires maintenance is monitored very closely. Suppose CBS measures, in addition to the average wait time, the standard deviation of the wait time in an effort to provide consistent service. Let's say that CBS has decided that if the standard deviation exceeds 30 minutes, additional service personnel should be hired to reduce the longer wait times. Suppose CBS collected the wait times for a random sample of 20 service calls and found the sample standard deviation to be 32.4 minutes. Using alpha = 0.10, determine if CBS needs to hire additional service personnel?