Question

A powder metal manufacturing company is producing sleeves for a locking mechanism. The target (nominal) value for the inside diameter is 1 inch. The inside diameter specifications are 1 .005 inches. Assume that the process is in statistical control with = 1.0002 inches, = .003 inches, and subgroup size of 5. Determine the estimated number of standard deviations of process leeway.
A. 3
B. 1.667
C. 3.72
D. 1.443
E. .72

Answer

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