How long can noncritical path activities be delayed without jeopardizing the overall completion date for this project?

12-1 Using the information in Table 12-7, construct a PERT network and answer each of the following questions:
- a. What is the expected project completion data?
- b. What is the scheduled start and completion date for each activity?
- c. Which activities are on the critical path?
- d. How long can noncritical path activities be delayed without jeopardizing the overall completion date for this project?
12-2 Assess the impact of the following changes to the time estimates provided in question 12-1. Individually, what is the impact if:

Activity	Predecessor	New Time Estimate
O. Advertise for new staff	N	4
P. Interview for new staff	O	6
Q. Select new staff	P	1
Collectively, what is the impact of these changes?

12-3 As project manager for the example included in question 12-1, what would you recommend to preserve the original project completion date if activity A was reestimated to take 8 weeks, not the original 4 weeks? Provide details.

· Table 12-7 Project to Convert a 20-Bed Unit in a Nursing Home to Accommodate Patients with Dementia

Activity		Predecessor	Time estimate (weeks)
A	Secure state approval	–	4
B	Identify 20-bed unit to be used	A	1
C	Move existing residents	B	1
D	Clean space	C	2
E	Develop architectural plans	A	9
F	Install new heating and ventilation systems	E	4
G	Install security systems	E	2
H	Move walls; renovate	F	4
I	Identify new equipment	A	1
J	Order new equipment	I	1
K	Unpack and inspect new equipment	J	1
L	Install new equipment	D, K, H	3
M	Reassign staff	A	1
N	Identify new staffing needs	M	1
O	Advertise for new staff	N	3
P	Interview for new staff	O	2
Q	Select new hires	P	3
R	Develop care plan protocols	M	1
S	Train staff	R, Q, M, L	1
T	Modify quality assurance plans	S	2
U	Coordinate with hospital discharge planners	T	4
V	Complete internal audit	U, G	1