Operations and Supply Chain Management 9th edition
9th Edition
ISBN: 9781119320975
Author: Roberta S. Russell, Bernard W. Taylor III
Publisher: WILEY
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Question
Chapter 3, Problem 30P
Summary Introduction
To draw: The process control chart and pattern test.
Introduction
p-chart is a control chart that is used for determining the flow of attributes in a process. p-chart determines the proportion of defects that occur in a process. The proportions of defects are checked with respect to the control limits of the process. Therefore, if a few sample observations shows the out of control situation, it simply means that quality improvement needs to be done.
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Boston Electric Generators has been getting many complaints from its major customer, Home Station, about the quality of its shipments of home generators. Daniel Shimshak, the plant manager, is alarmed that a customer is providing him with the only information the company has on shipment quality. He decides to collect information on defective shipments through a form he has asked his drivers to complete on arrival at customers' stores. The forms for the first
287
shipments have been turned in. They show the following over the past 8 weeks:
Week
No. of
Shipments
No. of
Shipments with Defects
1
23
10
2
31
11
3
32
12
4
39
13
5
35
12
6
40
14
7
41
14
8
46
17
This exercise contains only part a.
a) Using the point drawing tool eight times, develop a scatter diagram using total number of shipments and number of defective shipments.
Part 2
Boston Electric Generators has been getting many complaints from its major customer, Home Station, about the quality of its
shipments of home generators. Daniel Shimshak, the plant manager, is alarmed that a customer is providing him with the only
information the company has on shipment quality. He decides to collect information on defective shipments through a form he has
asked his drivers to complete on arrival at customers' stores. The forms for the first 285 shipments have been turned in. They show
the following over the past 8 weeks:
Week
1
234567
8
This exercise contains only part c.
No. of
Shipments
23
31
30
37
35
42
43
44
No. of
Shipments Incorrect
with
Bill of
Defects
10
11
11
12
12
14
15
16
Reason for Defective Shipment
Lading
4
1
3
4
5
4
Incorrect Damaged Trucks
Truckload Product
Late
4
5
5
4
5668
2
7212N 3 AN
4
2
0
4
3111C
2
Boston Electric Generators has been getting many complaints from its major customer, Home Station, about the quality of its shipments of home generators. Daniel Shimshak, the plant manager, is
alarmed that a customer is providing him with the only information the company has on shipment quality. He decides to collect information on defective shipments through a form he has asked his
drivers to complete on arrival at customers' stores. The forms for the first 283 shipments have been turned in. They show the following over the past 8 weeks:
Reason for Defective Shipment
A.
50-
40-
30-
20-
10-
0-
Number of defects
A B C
D
A: Incorrect bill of lading
B: Trucks late
C: Incorrect truckload
D: Damaged product
O B.
Week
1
This exercise contains only part c.
c) Choose the correct Pareto chart for the type of defects that have occurred.
50-
40-
30-
20-
10-
0-
2345∞
6
7
8
No. of
Shipments
23
29
30
37
35
42
元 41 46
Number of defects
A
B C
D
A: Incorrect bill of lading
B: Trucks late
C: Damaged…
Chapter 3 Solutions
Operations and Supply Chain Management 9th edition
Ch. 3.S - Prob. 1QCh. 3.S - Prob. 2QCh. 3.S - Prob. 3QCh. 3.S - Prob. 4QCh. 3.S - Prob. 5QCh. 3.S - Prob. 6QCh. 3.S - Prob. 7QCh. 3.S - The Great Lakes Company, a grocery store chain,...Ch. 3.S - Prob. 2PCh. 3.S - Prob. 3P
Ch. 3.S - The Fast Break Computer Company assembles personal...Ch. 3.S - Prob. 5PCh. 3 - Using Sampling and Statistics to Analyze...Ch. 3 - Prob. 2.1ASCCh. 3 - Prob. 3.1ASCCh. 3 - Prob. 4.1ASCCh. 3 - Prob. 5.1ASCCh. 3 - Prob. 1QCh. 3 - Prob. 2QCh. 3 - Prob. 3QCh. 3 - Prob. 4QCh. 3 - Prob. 5QCh. 3 - Prob. 6QCh. 3 - Prob. 7QCh. 3 - Prob. 8QCh. 3 - Prob. 9QCh. 3 - Prob. 10QCh. 3 - Prob. 11QCh. 3 - Prob. 1PCh. 3 - Prob. 2PCh. 3 - Prob. 3PCh. 3 - Prob. 4PCh. 3 - Prob. 5PCh. 3 - Prob. 6PCh. 3 - Prob. 7PCh. 3 - Prob. 8PCh. 3 - Prob. 9PCh. 3 - Prob. 10PCh. 3 - Prob. 11PCh. 3 - Prob. 12PCh. 3 - Prob. 13PCh. 3 - Prob. 14PCh. 3 - Prob. 15PCh. 3 - Prob. 16PCh. 3 - Prob. 17PCh. 3 - Prob. 18PCh. 3 - Prob. 20PCh. 3 - Prob. 21PCh. 3 - Prob. 22PCh. 3 - Prob. 23PCh. 3 - Prob. 24PCh. 3 - Prob. 25PCh. 3 - Prob. 26PCh. 3 - Prob. 27PCh. 3 - Prob. 28PCh. 3 - Prob. 29PCh. 3 - Prob. 30PCh. 3 - Prob. 32PCh. 3 - Prob. 33PCh. 3 - Prob. 34PCh. 3 - Prob. 36PCh. 3 - Prob. 37PCh. 3 - Prob. 38PCh. 3 - Prob. 39PCh. 3 - Prob. 40PCh. 3 - Elon Corporation manufactures parts for an...Ch. 3 - Prob. 42PCh. 3 - Prob. 44PCh. 3 - Prob. 45PCh. 3 - Prob. 46PCh. 3 - Prob. 47PCh. 3 - Metropolitan General Hospital is a city-owned...Ch. 3 - Prob. 50PCh. 3 - Prob. 51PCh. 3 - The Shuler Motor Mile is a high-volume discount...Ch. 3 - Prob. 1.1CPCh. 3 - Prob. 2.1CPCh. 3 - Improving Service Time at Daves Burgers Daves...
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