$1.$Loan Application Exercise:

a$)$For Parallel processing, why do we model the Delay type Expression as EXPO$(1)+$ EXPO$(1)+$ EXPO$(1)+$ EXPO$(1),$ as opposed to $4*$EXPO$(1)?$

b$)$What$$s the effect of service$-$time variability for the serial specialized processing vs$.$ the generalized parallel processing?

c$)$Which process would you recommend they use to process loan applications? Why?

$2.$Pencil Manufacturing Exercise

a$)$For ten replications, what is the $95\%$ for the number of pencils they can ship in a day? Can they keep up with demand?

b$)$Which stage in the process takes the longest? Does it cause a bottleneck?

c$)$Is there any part of the process they should paralyze? Why or why not?

d$)$Change some values around and re$-$run your tests. How would you advise them to change their process to improve productivity?