Questions $1-6$

Use the following problem statement to answer questions $1-6.$

The project network below shows activity times $($in weeks$)$ and their precedence relationships.

$[$Note$]$ ES $=$ Maximum $($EF$).$ EF $=$ ES $+$ t$.$ LF $=$ Minimum $($LS$).$ LS $=$ LF $-$ t$.$ Slack $=$ LS $-$ ES$.$ Slack $=$ LF $-$EF$.$

$4$

Multiple Choice

$4$ points

What is the LF time for activity D$?$ Round to the nearest whole number.

$13$

$14$

Multiple Choice

$4$ points

What is the estimated completion time of the project? Round to the nearest whole number.

$15$

$19$

$6$

Multiple Choice

$4$ points

What is the slack time for activity C$?$ Round to the nearest whole number.

$2$

$0$

$4$