NETWORK: PERT $1$

Consider the following table:

ACTIVITY PREC. ACT. TIME ESTIMATES $($days$)$

to tml tp te

A $---234$

B $---357$

C $---246$

D A $345$

E B $2513$

F C $246$

G D$,$ E$,$ F $456$

$1)$ 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 completion time and the standard deviation $(\backslash$sigma $)$ for the project$$ round off the standard

deviation to the nearest hundredth: two decimal places.

$4)$ What is the completion time at $99\%$ confidence level?

$5)$ What is the likelihood of this project being completed in more than $14$ days?

$6)$ Between $11$ and $13$ days?