Dave Fletcher was able to determine the activity times for constructing his laser scanning machine. Fletcher would like to determine$$ ES$,$ EF$,$ LS$,$ LF$,$ and slack for each activity. The total project completion time and the critical path should also be determined. Here are the activity$$ times:

$$

Activity

Time$($weeks$)$

Immediate$$ Predecessor$($s$)$

Activity

Time$($weeks$)$

Immediate$$ Predecessor$($s$)$

A

$5$

$$

E

$3$

B

B

$7$

$$

F

$6$

B

C

$3$

A

G

$10$

$$C$,$ E

D

$2$

A

H

$6$

D$,$ F

Part $2$

$$Dave$\text{'}$s earliest start$($ES$)$ and earliest finish$($EF$)$ are:

Activity

ES

EF

A

enter your response here

$5$