Comparing the importance of variation and mean of a distribution

Careful statistical thinking may lead to a different choice than that guided by superficial statistical thinking or conventional wisdom. This point was exemplified when a representative of a manufacturing company approached the authors with a real problem. The use of careful statistical thinking on...

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Bibliographic Details
Published in:Quality progress 1999-10, Vol.32 (10), p.90
Main Authors: Franklin, Leroy A, Cooley, Belva J, Elrod, Gary
Format: Magazinearticle
Language:English
Subjects:
Comparative analysis
Control charts
Distribution
Process planning
Quality control
Statistical analysis
Online Access:Get full text
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Summary:Careful statistical thinking may lead to a different choice than that guided by superficial statistical thinking or conventional wisdom. This point was exemplified when a representative of a manufacturing company approached the authors with a real problem. The use of careful statistical thinking on actual manufacturing data that proved to be somewhat counter intuitive is illustrated. After this particular organization acquired a second, smaller company, it realized it had two different methods for securing a pulley, fan or gear onto a steel hub - a common operation. Both the original organization and its newly acquired company had a preferred method. The two methods did not differ substantially in cost, and the acquisition presented opportunity to adopt the better method throughout the organization, standardize production and reduce inventories.
ISSN:0033-524X