CPM and Crashing a project. See the information shown below:

Activity	Immediate predecessor(s)	Normal Time (Months)	Crash Time (Months)	Normal Cost	Crash Cost
A	-	7	5	$1,600	$3,000
B	-	7	6	3,000	3,200
C	A	13	13	2,400	2,400
D	A, B	12	10	2,000	2,600
E	C	4	3	3,000	3,400
F	C, D	5	3	1,000	1,400

(4 points) Calculate ES/EF/LS/LF/Slack for selected activities. Use normal activity times.

(3 points) Determine the critical path. Use normal activity times. Show all your work.

(6 points) Suppose that you are the project manager in this project who prepares 3-month reduction schedule. Calculate crash cost per month for each activity.

(12 points) Select activities on the critical path with the smallest crash cost per month to reduce the project completion date by 3 months. Show all your work. You have to show network diagram updated after crashing each selected activity. You have to show total (crash) cost for each reduction. You have to show a new critical path and project duration for each reduction.

(3 points) After achieving 3-month reduction schedule, how many critical paths exist? Show all critical path(s). What is the total (crash) cost?

(3 points) __________ is a plan for allocating resources. The allocation of resources indicates the degree to which different activities of an organization are supported fully.