Question

Q3. The time estimates (in weeks) for the activities of a PERT network are:
(5)
Activity
Optimistic Time (t.)
Most likely Time (tm) Pessimistic Time (t)
1-2
1
1
7
1-3
1
4
7
14
2
2
8
2-5
N
1
1
3-5
2
5
14
4-6
2
5
8
5-6
3
6
15
a) Draw the project network
b) Determine the expected project length
c) Calculate Standard Deviation and variance of project length
d) What is the probability that the project will be completed at least 4 week earlier than the
expected time? (Given z <1.33)=0.9082 )
(5)

Answer 1

Answer:

belive in youreslf and you can do it .

Explanation:

Answer 2

Answer:4+6+7=17

17 is the length

Explanation: