I really need help with this question please.

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

Time(Weeks)

Activity	a	m	b	Immediate Predecessor(s)
A	6	9	10
B	2	9	23	A
C	9	12	16	A
D	4	7	9	A
E	1	2	4	B
F	5	8	20	C, E
G	2	3	5	C E
H	1	1	1	F
I	7	7	7	F
J	6	7	12	D, G, H
K	1	1	4	I, J

a) The expected (estimated) time for activity C is_____ weeks. (Round your response to two decimal places.)

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

c) Based on the calculation of the estimated times, the critical path is_____

d) The estimated time for the critical path is___ weeks. (Round your response to two decimal places.)

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

f) Using the standard normal tablethe probability that Hopkins Hospitality will finish the project in

36 weeks or less is ____(Enter as a probability and round your response to three decimal places.)