Task $1$: Consider the simulation results available in the accompanying Excel file and answer the following questions:

Why do you think each position $($Retailer$,$ Distributor, Warehouse, and Manufacturer$)$ ordered more units than

the customer $($overall$)?$

Why were the ordered quantities not received at the retailer and distributor for several weeks?

What would have happened if the simulation ran for another $10$ to $15$ weeks?

What is the total cost in the supply chain if inventory cost is $$5$ per unit per week and backorder cost is $$10$ per

unit per week?

What would have been the total cost in the supply chain if the retailer forecasted the demand from the customer

to be $5$ units per week and all the supply chain partners agreed to order and deliver $5$ units each week?