I need help with these two different problems. Please provide an explanation on how to solve them. Thank you!

The manager of a small post office is concerned that the growing township is overloading the one-window service being offered. Sample data are collected on 100 individuals who arrive for service: TIME BETWEEN ARRIVALS (MINUTES) 1 2 3 FREQUENCY 9 37 32 4 16 5 6 100 SERVICE TIME (MINUTES) 1.0 FREQUENCY 9 1.5 23 2.0 30 2.5 19 11 3.0 3.5 8 100 Using the following random number sequence, simulate six arrivals (Hint: Use random number set from 00 to 99.) RN: 36, 71, 0, 23, 92, 50, 83, 11, 98, 95, 97, 42, 13, 96, 61, 4, 29, 66 a. Average customer waiting time, in minutes (Round your answer to 4 decimal places.) Average customer waiting time minutes b. Average percent idle time for clerks. Average percent idle time A bank of machines in a manufacturing shop breaks down according to the following interarrival time distribution. The time it takes one repairperson to complete the repair of a machine is given in the service time distribution: INTERARRIVAL SERVICE TIME RN RN TIME (HOURS) .5 1.0 (HOURS) .5 1.0 0-29 30-54 P(X) 0.20 0.25 0-19 20-44 1.5 P(x) 0.30 0.25 0.18 0.13 0.08 0.06 2.0 0.30 45-74 55-72 73-85 2.0 0.12 75-86 3.0 4.0 3.0 86-93 0.08 87-94 4.0 94-99 5.0 0.05 95-99 1.00 1.00 Simulate the breakdown of five machines. Calculate the average machine downtime using two repairpersons and the following random number sequence. (Both repairpersons cannot work on the same machine.) (Round your answer to 1 decimal place.) Average downtime hours