Ross Hopkins, president of Hopkins Hospitality, has developed the tasks, durations, and predecessor relationships in the following table for building new motels.

	Time (weeks)	Immediate		Time (weeks)	Immediate
Activity	a	m	b	Predecessor(s)	Activity	a	m	b	Predecessor(s)
A	4		9		12			G	2		3		4		C, E
B	1		8		23		A	H	1		1		1		F
C	9		14		18		A	I	7		7		7		F
D	5		6		10		A	J	6		8		14		D, G, H
E	1		2		4		B	K	1		1		4		I, J
F	5		9		20		C, E

Part 2a) The expected (estimated) time for activity C is

______

weeks. (Round your response to two decimal places.)Part 3b) The variance for activity C is

______

weeks. (Round your response to two decimal places.)Part 4c) Based on the calculation of the estimated times, the critical path is _________

A - B - E - F - H - J - K

A - C - G - J - K

A - B - E - G - J - K

A - B - E - F - I - K

A - C - F - H - J - K

A - D - J - K

A - C - F - I - K

.

Part 5d) The estimated time for the critical path is

______

weeks. (Round your response to two decimal places.)Part 6e) The activity variance along the critical path is

__________

weeks. (Round your response to two decimal places.)Part 7f) Using the

standard normal table

LOADING...

,

the probability that Hopkins Hospitality will finish the project in

40

weeks or less is

__________.

(Enter as a probability and round your response to three decimal places.)