You have recently been hired by the BRC Company as the quality engineer. Your new boss, Abigail
Question:
1. What kind of control chart is this?
2. What do you estimate the standard deviation (ϲ) of the parent population to be, assuming that the control limits on this chart are based on three sigma.
3. The dashed line in the figure labeled "mean" is not the mean or the average-the mean is and is equal to 0.00017. What is the line really called?
4. From the information given in the discussion and in the figure, determine the values of Cp and Cpk.
5. What is the most glaring error in the figure and why is it so wrong?
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Related Book For
Materials and process in manufacturing
ISBN: 978-0471656531
9th edition
Authors: E. Paul DeGarmo, J T. Black, Ronald A. Kohser
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