Problem set 4
Chapter 3
PERT method
1. Three recent college graduates have formed a partnership and have opened an
advertising firm. Their first project consists of the activities listed below:
Activit
y
Start
A
B
C
D
E
F
G
H
I
End
Immediate
Predecess
Tim
Problem set 1
Chapter 4
(Nave method, Moving average, Weighted Moving average
and exponential smoothing methods)
1. Sales for a product for three past months have been 200, 350 and 287. What is the
forecast for the fourth month? Use (i) Nave approach, (ii
2. Using the information in the table below, do the following:
(i)
Construct a Gantt chart.
(ii)
Construct an activity on node (AON) diagram.
(iii)
Determine which activities are on the critical path.
(iv)
Compute the length of the critical path.
(v)
Dete
Problem Set 3 Q and A
Chapter 4: Forecasting
1. The manager of a small health clinic would like to use exponential smoothing to
forecast demand for laboratory services in the facility. However, she is not sure whether
to use a high or low value of . To ma
Chapter 3
Set 2
1. Bill Fennema, president of Fennema Construction, has developed the tasks, durations, and
predecessor relationships in the following table for building new motels. Draw the AON network
and answer the questions that follow.
Activity
A
B
C
Chapter 1
problems set 1
Problem 1:
Mance Fraily, the Production Manager at Ralts Mills, can currently expect his operation to produce 1000
square yards of fabric for each ton of raw cotton. Each ton of raw cotton requires 5 labor hours to process.
He bel
Problem set 3
1.Suppose that a company produced 300 standard bookcases last week using 8 workers and it produced 240 standard bookcases this
week using six workers. In which period was productivity higher?
Solution:
300 SBC
37.5 SBC/W last week
8W
240 SBC
Chapter 3
Set 1
Problem 1
The information below pertains to a project that is about to commence.
Activity Duration Immediate Predecessor( s )
(days)
- - -A
15
-B
12
A
C
6
B
D
5
B
E
3
C,D
F
8
-G
8
F
H
9
F
I
7
G
J
14
H
K
6
J
End
E, I, K
1. Create the activi
Chapter 1
Problem set 2
1. Long Beach Bank employs three officers, each working eight hours per day. Each
officer processes an average of five loans per day. The banks payroll cost for the officers
is $820 per day. And there is a daily overhead expense of
Chapter 6
Problems and solutions set 1
Chapter : Quality Control
Source : Stevenson
1. Make a check sheet and then a Pareto diagram for the following car repair shop data.
Ticket No. Work
Ticket No. Work
1
2
3
4
5
Tires
Lube & oil
Tires
Battery
Lube & oil