This question is a continuation of the software$-$controlled conveyor belt project begun in part $1.$ Use the included project file to answer the following questions.

After showing your resource$-$constrained network to top management, they are very disappointed. After some explanation and negotiation, they make the following compromise with you:

$$ The project must be completed in no more than $285$ days.

$$ You may NOT make any changes to tasks $1,2,3,$ or $4.$

$$ One additional Design resource has already been added to the project.

$$ If you think it is beneficial, you may assign one additional development resources at the same cost rate as the original development resources.

$$ If this does not suffice, you may hire other people from the outside. Hire as few additional external people as possible because they cost $$75$ more per hour than your inside people.

$$ The scope of the project remains the same and the amount of work for each task may not be changed.

$$ Task dependencies may NOT be changed.

$$ Overtime is allowed, but the cost rate is $1\mathrm{.}5$ times the standard cost rate

$$ If overtime is used, total working hours may not exceed $16$ hours per day

$$ Splitting of tasks is allowed

$$ Resources assignments less than $100\%$ are allowed

$$ Activity durations are not fixed meaning adding additional resources to an activity decreases the duration of the activity.

$$ Your changes should minimize the impact to the overall project cost.