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    Statistics for Business and Economics Study Set 3
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    Exam 21: Statistical Methods for Quality Control
  5. Question
    A Production Process That Is in Control Has a Mean
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A Production Process That Is in Control Has a Mean

Question 31

Question 31

Short Answer

A production process that is in control has a mean (µ) of 189 and a standard deviation (σ) of 21.
Determine the lower and the upper control limits for sample sizes of 64.

Correct Answer:

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LCL = 181....

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