Problem 4

Activity	a	m	b
AB	3	6	9
AC	1	4	7
CB	0	3	6
CD	3	3	3
CE	2	2	8
BD	0	0	6
BE	2	5	8
DF	4	4	10
DE	1	1	1
EF	1	4	7
Find

(a) The AOA network and the critical path.

(b) All event slacks.

(c) Critical path to event D.

(d) Critical path probability of completion in 14 days.

(e) The effect if CD slips to 6 days; to 7 days; to 8 days.