QUESTION $4(20$ marks$)$

Four Squares Productions, a firm hired to coordinate the release of the movie Pirates of the Caribbean: On Stranger

Tides $($starring Johnny Depp$),$ identified $14$ activities to be completed before the release of the film. The tasks in weeks

are provided Table $4\mathrm{.}1.$

ACTIVITY IMMEDIATE PREDECESSORS TIME $($Days$)$

A $-6$

B $-2$

C A $6$

D A $8$

E B$,$ C $9$

F D $3$

G D $6$

H E$,$ F $4$

I G$,$ H $6$

J I $5$

K I $9$

L J $4$

M K $2$

N L$,$ M $8$

a$)$ How many weeks in advance of the film release should Four Squares have started their marketing

campaign?

$(10$ marks$)$

b$)$ Which are the activities that need to be prioritised to deliver the marketing campaign project within the

expected time?