A project for improving a billing process has the following precedence relationships and activity$$ times:

$$

Activity

Activity Time$($weeks$)$

Immediate$$ Predecessor$($s$)$

A

$44$

minus$$

B

$88$

minus$$

C

$77$

A

D

$1111$

$$B$,$ C

E

$1111$

B

F

$44$

D

G

$33$

E

H

$7$

b$.$ Calculate the slack for each activity. Which activities are on the critical path?

Activity

Activity Time $($weeks$)$

On critical path?

Slack $($weeks$)$

A $4$ Yes $0$ B $8$ No $3$ C $7$ Yes $0$ D $11$ Yes $0$ E $11$ No $3$ F $4$ Yes $0$ G $3$ No $2$ H $7$ Yes $0$ A project for improving a billing process has the following precedence relationships and activity times: