Problem 17-12 (Static)

A project manager has compiled a list of major activities that will be required to install a computer information system in her firm. The list includes estimated completion times for activities and precedence relationships. Use Table B1 and Table B2.

Activity	Immediate Predecessor	Estimated Times (weeks)
A		2-4-6
D	A	6-8-10
E	D	7-9-12
H	E	2-3-5
F	A	3-4-8
G	F	5-7-9
B		2-2-3
I	B	2-3-6
J	I	3-4-5
K	J	4-5-8
C		5-8-12
M	C	1-1-1
N	M	6-7-11
O	N	8-9-13
End	H, G, K, O

Click here for the Excel Data File

a. Determine the mean and standard deviation for each of the following paths in the project. (Round Mean and Standard Deviation to 2 decimal places.)

b. If the project finishes within 26 weeks of its start, the project manager receives a $1,000 bonus. What is the probability of a $1,000 bonus? (Round z-value to 2 decimal places, and probability to 4 decimal places.)

c. If the project finishes within 27 weeks of its start, the project manager receives a $500 bonus. What is the probability of a $500 bonus? (Round z-value to 2 decimal places, and probability to 4 decimal places.)