Answered: Mean Time Mean Time to Reach to Fix…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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Question

Nadia Algar is the overworked IT resource person for her
department. In the next round of computer purchases, she
is determined to recommend a vendor who does a betterjob of documenting possible errors in the system and
whose customer service line is more responsive to the
needs of her colleagues. Nadia compiled the following
data over an eight-week observation period. Assuming
40 hours per week, which computer vendor should Nadia
pursue?

Mean Time
Mean Time
to Reach
to Fix
Computer
Vendor
JCN
Number of
Customer Service
Problem
Problems
(Hours)
(Hours)
50
3.0
2.0
Bell
100
2.0
1.0
Comtron
250
1.0
0.5

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