6.16 Boston Electric Generators has been getting many complaints from its major
ID: 403927 • Letter: 6
Question
6.16 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%u2019 stores. The
forms for the first 279 shipments have been turned in. They show
the following over the past 8 weeks:
No. of
Ship-
Reason for Defective Shipment
Week
No. of
Shipments
ments
with
Defects
Incorrect
Bill of
Lading
Incorrect
Truckload
Damaged
Product
Trucks
Late
1 23 5 2 2 1
2 31 8 1 4 1 2
3 28 6 2 3 1
4 37 11 4 4 1 2
5 35 10 3 4 2 1
6 40 14 5 6 3
7 41 12 3 5 3 1
8 44 15 4 7 2 2
Even though Daniel increased his capacity by adding more workers
to his normal contingent of 30, he knew that for many weeks he
exceeded his regular output of 30 shipments per week. A review of
his turnover over the past 8 weeks shows the following:
No. of
New Hires
No. of
Terminations
Total No. of
Workers
1 1 0 30
2 2 1 31
3 3 2 32
4 2 0 34
5 2 2 34
6 2 4 32
7 4 1 35
8 3 2 36
a) Develop a scatter diagram using total number of shipments and
number of defective shipments. Does there appear to be any relationship?
b) Develop a scatter diagram using the variable %u201Cturnover%u201D (number
of new hires plus number of terminations) and the number of
defective shipments. Does the diagram depict a relationship
between the two variables?
c) Develop a Pareto chart for the type of defects that have occurred.
d) Draw a fish-bone chart showing the possible causes of the defective
shipments.
Explanation / Answer
yeah the no of defective shipment increases with the increase in total number of shipments delivered
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