$\frac{1}{1}$

$100\%$

ACTIVITY

PREC ACT.

TIME ESTIMATES $($days$)$

A

B

C

D

E

r

G

$H$

$1$

s

C

A

B

C$,$ D

C$,$ D

C$,$ D

E

G

H$,$ F$,$ I

$1$

$1$

$1$

$3$

$1$

$1$

$1$

$2$

$1$

$3$

$2$

$3$

$5$

$1$

$1.$

$4$

$5$

$2$

$2$

$9$

$1.$

$2$

$2$

$5$

$3$

$4$

II

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.$]($Network: $15$ points$)$

CLEARLY SHOW ALL TIMES IN THE NETWORK. By using ES$,$ EF$,$ LF$,$ LS$,$ find the slack of each activity and IDENTIFY the CRITICAL PATH.

$($TIME: $15$ points; CP:$10$ points$)$

Find the completion time $(\stackrel{}{x}$ Xbar$)$ and the standard deviation $($ Sigma$)$ for the project$-$ round off the standard deviation to the nearest hundredth: two decimal places. $($Xbar: $15$ points; Sigma: $15$ points$)$