Q$3)$ a$)$ Using the data in Table $4,$ draw the graph of maximum and minimum bounds of possible weekly cash flow by using float management. Hint: Each project needs to be evaluated individually first, then the findings need to be gathered to show the cash flow covering all three projects. b$)$ Draw the graph of maximum and minimum possible weekly labor day requirement. Try to level the labor day requirements to have a least possible variation in the resources. c$)$ Reduce the expected total duration of total completion duration of all three projects by $10-$weeks with crashing technique. Draw a graph which shows the reverse correlation between cost and duration for this $10-$weeks crashing. Assume that each crashing may reduce the duration by $1$ week. Hint: You may crash any activity in any project without any separation between the projects.

Table $4$

$\backslash$table$[[$Activity$,\backslash$table$[[$Cost$],[($$$1000)$