Batching Customers (challenge # 1) look at Challenge 1

Explain how batching affects throughput and why.
What is the best decision regarding batching customers? Why (support rationale through reference to performance metrics). What are the potential disadvantages of batching?

Designing the Bar (challenge # 2) look at challenge 2 attached

Is having a bar a good idea? Why? What is the function of the bar?
What should be the size for the bar?