a$)$ Draw a network diagram for the project.

b$)$ Mark the critical path and state its length.

c$)$ If the Maser had to be completed $2$ days earlier, would it help to:

i$)$ Buy preassembled transmissions and drivetrains? ii$)$ Install robots to halve engine$-$building time? li$)$ Speed delivery of special accessorics by $3$ days?

d$)$ How might resources be borrowed from activities on the noncrit$-$ical path to speed activities on the critical path?