$($i$)$ Questions C$,$ D$,$ and E are independent from each other.

A$.$ Use the decision tree approach to determine the expected net value from the current

capacity portfolio $($i$.$e$.,$ expected total profit from sales minus the total capital expense for

the capacities$).$ Please $($i$)$ draw the decision tree, $($ii$)$ specify the sales numbers under each

of the demand scenarios, $($iii$)$ calculate the expected total profit from sales and the the

total capital expense for the capacities, $($iv$)$ and finally derive your answer about the

expected net value. Make sure to include explanations and formulas to show how you

derive the numbers.

B$.$ Calculate the return of investment $($ROI$)$ under the current capacity portfolio. Show your

formula.

C$.$ Holding all else as is$,$ determine the marginal value for FlexMan if their assembly capacity

for routers was to increase by one unit. Is it profitable to do so$?$ Show the calculations and

explain your answer.

D$.$ Holding all else as is$,$ determine the marginal value for FlexMan if their assembly capacity

for switches was to increase by one unit. Is it profitable to do so$?$ Show the calculations

and explain your answer.

E$.$ Holding all else as is$,$ determine the marginal value for FlexMan if their testing capacity

was to increase by one unit. Is it profitable to do so$?$ Show the calculations and explain

your answer.