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Although there have been no reports from former
quality manager Kohl Minor and his boss, Hal Zangels, now working
in Hunan, China, many wonder about their abrupt departure from the
company. Polly Yurathane, new quality manager for Blackern Dirt
Mining Company, has demonstrated her prowess with statistical analysis
and has secured the confidence of her boss, Hyde N. Sikh with her
analysis of the t value.
Studying the multiple regression model on which she had based her analysis, Polly tries to think of ways that she can simplify the analysis for Mr. Sikh.
Since Hyde still fails to understand the printout,
Polly writes the following equation on her white board, prepared
to provide deeper instruction to her boss:
This time, Hyde asks about the F value.
Confident of her statistical skills, she responds that it will be
necessary to pursue hypothesis testing in order to understand the
Is she right about this course of action?
a) Yes, but if she
continues to prove Hyde N. Sikh incompetent, she better look for
b) No. Her job is safe,
but she needs to go back to the stat book to understand this question.
2007 PQ Systems.
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