What is the estimated slack time for Activity E$?$

Activity

Start

Node

Finish

Node

Optimistic Time

Estimates $($days$)$

Most Likely Time

Estimates $($days$)$

Pessimistic Time

Estimates $($days$)$

A

$1$

$2$

$11$

$20$

$29$

B

$2$

$3$

$2$

$5$

$8$

C

$2$

$4$

$18$

$30$

$42$

D

$3$

$4$

$7$

$10$

$13$

E

$1$

$4$

$31$

$40$

$43$

$11$ weeks

$3$ weeks

$12$ weeks

$0$ weeks

$9$ weeks