The following table provides the information necessary to construct a project network and

project crash data:

The project variance is $3$ weeks.

e$)$ Find the probability of completion of the project before week $28.$

f$)$ Find the due date that gives the project a $90\%$ chance of on$-$time completion.

g$)$ If you wish to reduce the time required to complete this project by $3$ weeks, which

activity should be crashed, and how much will this increase the total cost?

h$)$ If you wish to further reduce the time required to complete by one more week, which

activity should be crashed, and how much will this increase the total cost?