Sue Smith is developing a six-sigma quality certification program for managers. Smith has listed a number of activities that must be completed before a certification of this nature could be conducted. The activities, immediate predecessors, and times appear in the accompanying table:

Activity	Predecessor	Time (Days)
A	-	2
B	-	5
C	-	1
D	C	10
E	A,B	3
F	D	6
G	E,F	8

a. What is the critical path? ["C, D, E, F, G", "B, C, D, G", "A, B, F, G", "A, B, C, F, G", "C, D, F, G"]

b. What is the total project completion time? ["27 days", "20 days", "29 days", "18 days", "25 days"]

c. How much slack is there in activity E.? ["0 (zero), it is on the critical path", "9 days", "7 days", "5 days", "12 days"]

d. What is the ES/EF and LS/LF for activity E? ["1 and 11; 1 and 11", "5 and 10; 16 and 19", "11 and 17; 17 and 25", "5 and 8; 5 and 8", "5 and 8; 14 and 17"]

e. What if activity B. was delayed by 10 days, what would be the project length and critical path? ["24 days, A, C, F, G", "28 days, C, D, E, G", "32 days, B, C, E, F, G", "26 days, B, E, G", "there would be no change in the project length or critical path"]