The R&D department is planning to bid on a large project for the development of a new

communications system for commercial planes. The accompanying table shows the activities,

times, and sequences required. $(4$ points$)$

Activity Immediate Predecessors Time $($week$)$

A $-3$

B A $2$

C A $4$

D A $4$

E B $6$

F C$,$ D $6$

G F $2$

H D $3$

I E$,$ G$,$ H $3$

$(1)$ Find the Early Start $/$ Early Finish Time of Each Activity

$(2)$ Find the Late Start $/$ Late Finish Time of Each Activity

$(3)$ Calculate the SLACK in each activityThe R&D department is planning to bid on a large project for the development of a new

communications system for commercial planes. The accompanying table shows the activities,

times, and sequences required. $(4$ points$)$

Activity Immediate Predecessors Time $($week$)$

A $-3$

B A $2$

C A $4$

D A $4$

E B $6$

F C$,$ D $6$

G F $2$

H D $3$

I E$,$ G$,$ H $3$

$(1)$ Find the Early Start $/$ Early Finish Time of Each Activity

$(2)$ Find the Late Start $/$ Late Finish Time of Each Activity

$(3)$ Calculate the SLACK in each activity