****PLEASE show all work and explain each step.*****

My-law.com is a recent start-up trying to cater to customers in search of legal services who are intimidated by the idea of talking to a lawyer or simply too lazy to enter a law office. Unlike traditional law firms, My-law.com allows for extensive interaction between lawyers and their customers via telephone and the Internet. This process is used in the upfront part of the customer interaction, largely consisting of answering some basic customer questions prior to entering a formal relationship. In order to allow customers to interact with the firm's lawyers, customers are encouraged to send e-mails to my-lawyer@My-law.com. From there, the incoming e-mails are distributed to one of the three lawyers who are currently on call. Given the broad skills of the lawyers, each lawyer can respond to each incoming request. E-mails arrive from 8 a.m. to 6 p.m. at a rate of 10 e-mails per hour. Interarrival times are exponentially distributed. It takes the lawyer, on average, 15 minutes to write the response e-mail. The standard deviation of this is 20 minutes. What is the average time a customer has to wait for the response to his/her e-mail? a (avg. inter- arrival time) m (number p (avg. service time) u (avg. utilization) of servers) CV. (coef. of CV (coef. of var.- arrival) var.- service)