How your backlog/inventory situation change over time

to use a simulator to better understand a Beer Company (you can be a soft drink company if you prefer). You can play either at:
 http://forio.com/simulation/harvard-business-school-root-beer-game-demo/
– Free sample
 https://www.sipm.com/game/beergame-demo/
 https://supplychain-academy.net/beer-game/
 http://beergame.mit.edu/
– Old Java, which may not run well on your machine
• Answer the following questions.
 How did your backlog/inventory situation change over time (graph)?
 What was being simulated about the Beer Company? Draw a Picture of what was being simulated.
 What did this simulation help you understand about the Beer Company? What did it not help you understand about the Beer Company?
 Were there random effects in the simulation? If so, what were they? If not, why did backlog & inventory vary so much?
 What variables must be accounted for in the simulation?