Consider the following two queue system Queue 0 CPU Queue 1 CPU scheduler used at Queue 0 is Shortest job first-Preemptive CPU scheduler used at Queue 1 is Shortest job first-Non-Preemptive CPU is scheduled between Queue 0 and Queue 1 according to round robin scheduler. That is CPU is given to Queue 0 for 8 ms then switched to Queue 1 for 8 ms then switched back to Queue 0 for 8 ms then switched back to Queue 1 for 8 ms and so on until all processes completed CPU information for processes are defined as follows: Queue 0 PO P1 33339 P2 P3 Arrival time 6 18 20 24 CPU time 7 1 7 1 Queue 1 P4 P5 P6 P7 Arrival time 0 8 24 30 CPU time: 8 6 4 1 Calculate the average waiting time for all eight processes. Show all detailed scheduling events and your calculation. (20 points)