Question: Consider the following table: ACTIVITY PREC. ACT. TIME ESTIMATES (days) t o t ml t p t e A --- 4 4 4 B A

Consider the following table:

ACTIVITY PREC. ACT. TIME ESTIMATES (days)

to tml tp te

A --- 4 4 4

B A 4 5 6

C A 1 3 5

D B 3 4 5

E C 1 3 5

F D 1 5 3

1) Construct a PERT network.

[NOTE: This is the most crucial part of the exercise. Make sure you have the correct network before proceeding to the next sections.]

2) By using ES, EF, LF, LS, find the slack of each activity and the critical path.

3) Find the average completion time (Xbar) and the standard deviation () for the project

(Round off the standard deviation to the nearest hundredth: two decimal places.)

4) What is the completion time at 99.7% confidence level?

5) What is the likelihood of this project being completed earlier than 16 days?

6) Between 16 and 18 days?

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