Perform a project management analysis for the data given below to determine ES$,$ EF$,$ LS$,$ LF$,$ and slack for each

activity, the total project completion time, and the critical path.

Activity Time $($weeks$)$ Predecessors Activity Time $($weeks$)$ Predecessors

A $5$ E $3$ B

B $4$ F $5$ B

C $1$ A G $9$ D$,$ E

D $2$ A H $6$ C$,$ F

$($a$)$ Draw a network with t$,$ ES$,$ EF$,$ LS$,$ and LF $($follow the same format as Figure $11\mathrm{.}5$ on p$\mathrm{.}394)$