Graded Homework

1. The following describes precedence relationships and times for activities to complete a project. (Use table for problems 43 to 50).

   Activity	Immediate Predecessors	Time (Weeks)
   A	—	5
   B	—	5
   C	A	3
   D	A	2
   E	B	4
   F	B	6
   G	C,E	10
   H	D,F	7

   Which activity(s) represents the beginning of the project?

   a.	A
   b.	A& B
   c.	A,C, and D

2 points

QUESTION 44

1. Which activity(s) represents the end of the project?
   

   a.	G
   b.	H
   c.	G & H

2 points

QUESTION 45

1. What is the early finish (EF) for activity C?
   

   a.	3
   b.	5
   c.	8

2 points

QUESTION 46

1. If the critical path is BEG and the expected project completion time is 19 weeks, what is the latest starting time (LS) for activity H?
   

   a.	11
   b.	12
   c.	19

2 points

QUESTION 47

1. If the critical path is BEG and the expected project completion time is 19 weeks, what activities have no slack?
   

   a.	ACDFH
   b.	BEG
   c.	ABGH

2 points

QUESTION 48

1. Suppose Activity C had the following additional estimates:

   Activity	Immediate Predecessor	Most Optimistic Time	Most Likely Time	Most Pessimistic Time	Expected Time	Variance
   C	A	2	3	5

   What would be the expected completion time for activity C?

   a.	3
   b.	3.167
   c.	3.333

2 points

QUESTION 49

1. What would be the activity variance for activity C?
   

   a.	0.25
   b.	0.50
   c.	0.75

2 points

QUESTION 50

1. Activities on the critical path
   

   a.	have LS equal to LF.
   b.	have ES equal to EF.
   c.	have no slac