Question 1 10 Points Customers arrive to a bank according to NORM( 12, 3) interarrival times 50% of customers wait in a line to see customer service employee. 40% go to the cashier. 10% ask to see the branch manager. Customers who ask to see the customer service employee take from 8 - 16 minutes. After getting their services, 80% leave the bank, the remaining 15% go the cashier, and 5% go to see the branch manager. Customers spend at the cashier TRIA(3,8,12) minutes. Customers leave the bank afterwards. The bank has two employees working as customer service and two working as cashiers. Customers who want to see the manager need NORM(17.2) from his time, after they finish 30% go the cashier and the remaining leave the bank. The bank runs 8 hours per day, the branch manager does not take break while the other employees take staggered breaks of 1 hour after 2 and 5 hours of the start of the shift. [use WAIT rule for schedules] A The percentage of the value-added time is higher than 95% B The total time a customer spends in the bank is 16.46 min The max number of customers who waited for the cashier are 2 customers. D To model the system we need more than 2 "DECIDE" Modules. E Scheduled Utilization of the cashiers is around 21% Customers' average waiting time at the manager's office is higher than 2 minutes. G The max time a customer spent in the system 54.48 minutes The average number of customers who visit the cashiers during a run are about 312 customers. 1 The 95% of the WIP is between (1.01-1.07) customers Question 1 10 Points Customers arrive to a bank according to NORM( 12, 3) interarrival times 50% of customers wait in a line to see customer service employee. 40% go to the cashier. 10% ask to see the branch manager. Customers who ask to see the customer service employee take from 8 - 16 minutes. After getting their services, 80% leave the bank, the remaining 15% go the cashier, and 5% go to see the branch manager. Customers spend at the cashier TRIA(3,8,12) minutes. Customers leave the bank afterwards. The bank has two employees working as customer service and two working as cashiers. Customers who want to see the manager need NORM(17.2) from his time, after they finish 30% go the cashier and the remaining leave the bank. The bank runs 8 hours per day, the branch manager does not take break while the other employees take staggered breaks of 1 hour after 2 and 5 hours of the start of the shift. [use WAIT rule for schedules] A The percentage of the value-added time is higher than 95% B The total time a customer spends in the bank is 16.46 min The max number of customers who waited for the cashier are 2 customers. D To model the system we need more than 2 "DECIDE" Modules. E Scheduled Utilization of the cashiers is around 21% Customers' average waiting time at the manager's office is higher than 2 minutes. G The max time a customer spent in the system 54.48 minutes The average number of customers who visit the cashiers during a run are about 312 customers. 1 The 95% of the WIP is between (1.01-1.07) customers
