Floyd Electric Is Fabricating Flanges for a New Electrical Motor $\begin{array}{|c|c|l|l|l|l|l|l|l|l}25.69 & 25.58 & 24.78 & 24.94 & 24.87 & 24.63 & 25.70 & 25.52 & 24.95 & 24.91\end{array}$

question 52

Multiple Choice

Floyd Electric is fabricating flanges for a new electrical motor. The flange is to be 25 millimeters in diameter with an upper tolerance limit of 26.5 millimeters and a lower tolerance limit of 23.5 millimeters. Bill Floyd took a sample consisting of ten flanges, measured the diameter and recorded the observations in the table. He has heard discussion of 6 sigma in the business news recently and would like to join the club. $\begin{array}{|c|c|l|l|l|l|l|l|l|l}25.69 & 25.58 & 24.78 & 24.94 & 24.87 & 24.63 & 25.70 & 25.52 & 24.95 & 24.91\end{array}$
What percentage decrease in process standard deviation would be required for Floyd Electric to achieve 6-sigma process capability? Assume that his process mean remains where it is.

• A)36%
• B)40%
• C)46%
• D)58%

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