Customer Time since last arrival Arrival Service Time Time Service Time Time Time Time Idle time Service customer Service customer Of Begins Waiting End Spent in server Queue system 1 2 3 4 5 6 1 1 6 3 7 0 1 2 8 11 18 4 2 5 4 1 S Fill up the empty blanks in the above table and find the following. a. The average waiting time per customer (minutes). b. the probability that the costumer has to wait in the queue. c. The proportion of idle time of the server (minutes) d. The average service time (minutes) e. The average waiting time for customers that have to wait (minutes)