Question

At a local university, the Student Commission on Programming and Entertainment (SCOPE) is preparing to host its first rock concert of the school year. To successfully produce this rock concert, SCOPE has listed the requisite activities and related information in the following table (duration estimates measured in days).

Activity		Predecessor(s)	Optimistic	Probable	Pesssimistic
A:	Negotiate contract with	-	9	10	14
	selected musicians
B:	Reserve site	-	6	8	10
C:	Manage travel logistics	A	4	6	11
	for music group
D:	Screen & hire	B	2	3	4
	security personnel
E:	Arrange advertising	C	5	5	5
	& ticketing
F:	Hire parking staff	A, D	5	7	9
G:	Arrange concession sales	E	2	8	11

Activity		Predecessor(s)	Optimistic	Probable	Pesssimistic
A:	Negotiate contract with	-	9	10	14
	selected musicians
B:	Reserve site	-	6	8	10
C:	Manage travel logistics	A	4	6	11
	for music group
D:	Screen & hire	B	2	3	4
	security personnel
E:	Arrange advertising	C	5	5	5
	& ticketing
F:	Hire parking staff	A, D	5	7	9
G:	Arrange concession sales	E	2	8	11

6. If activity B is delayed by six days beyond its early start time, how does this affect the expected project duration? If required, round your answer to one decimal place.
   
   A delay of 6 days to activity B will affect the time to complete this project because activity B has a slack of days.

Answer 1

ANSWER: (f) activity B is delayed by six days beyond its early start time, how does this affect the expected project duration? If required, round your answer to one decimal place. A delay of 6 days to activity B will affect the time to complete this project because activity B has a slack of days. so Determine the effect in expected project duration by a delay of six days in the activity 6 as shown below: Note: A delay of 6 days in activity 6 means that the expected duration of activity 6 will now be 14 days instead of 8 days. There will be no difference in the expected projected duration. It is because activity E will consider the maximum early finish time of Activity C and B. Since path A-C constitute a higher early finish time i.e. 17 days than activity B alone. Thus, there will be no difference in the expected project duration. This can be verified as shown below: А Immediate Predessor a + 4m+b Activity EC) = Early start Early finish Late start Late finish Slack (LS- ES) 6 () 10.5 0 0 1.36 011 0.69 0 0 10.5 10.5 12 17 6.5 А B - A D B 6E B. CL 7 FD E 10. 5 14 17 17 22 24 29.5 -2 10.5 12 17 15 5 1.78 17 17 22 22 22 29.5 7.5 1.36 The early finish time is still 29.5 days. Hence, the above conclusion is verified.