You hire a consultant, and she advises you to add an ordering station (a simple microphone speaker system) before the delivery window. This would let customers interact earlier with the sales clerk, and could reduce their impatience while waiting in line for their food. The operations manager estimates that the service time in this new configuration would be as follows: Time needed for placing an order is uniformly distributed between 0.5 and 1.5 minutes. The service time in the delivery station is uniformly distributed between 1 and 3 minutes. Using a simulation model, answer following questions (assume that both stations have infinite queue capacity): 4. What is the average waiting time in each station? 5. Is the average time the car spends in the system (from arriving to departure) longer or shorter than the system with a single window? 6. (bonus question) Estimate the average profit of the restaurant per hour if the waiting time guarantee changes as follows: if a customer waits more than 4 minutes after putting their order until receiving their food, they will be served for free, which costs the restaurant $2 (70% of the time) or $3 (30% of the time).