A Powder Metal Manufacturing Company Is Producing Sleeves for a Locking

Multiple Choice

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 $\overline { \overline { X } }$


= 1) 0002 inches, $\overline { \mathrm { R } }$
= ) 003 inches,and subgroup size of 5.Calculate the estimated proportion of out-of-specification sleeve inside diameters.

A) .0471
B) .0217
C) .0001
D) .4783
E) .0139