M$6\_4.$ A software installation project is being reviewed. Assume the project must be completed in $16$

weeks. Crash the project as necessary $($crashing one week at a time$).$ The relevant information is in the

table below.

Crash the project from to $16$ weeks by $1$ week increments and answer the following questions:

a$)$ Which activities are on the critical path $($before you start crashing the project$)?$

b$)$ What is the crash cost per week for Activity A$?$

c$)$ By how many weeks can Activity D be crashed?

d$)$ To crash the project from $21$ weeks to $20$ weeks, which activity would you crash by one week?

e$)$ To crash the project from $20$ weeks to $19$ weeks, which activity would you crash by one week?

f$)$ To crash the project from $19$ weeks to $18$ weeks, which activity would you crash by one week?

g$)$ To crash the project from $18$ weeks to $17$ weeks, which activity would you crash by one week?

h$)$ To crash the project from $17$ weeks to $16$ weeks, which activity$($s$)$ would you crash by one week?

i$)$ What is the total crashing cost to crash the project from $21$ weeks to $16$ weeks?

j$)$ After crashing your project to $16$ weeks $-$ how many critical paths does your project have?