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Question
Suppose that
and R charts based on subgroups of size 4 are being used to monitor the tire diameter of a new radial tire. The and R charts are found to be in statistical control, with 
= 50.5, 
= 1.25 inches. A histogram of the tire diameter measurements indicates that these measurements are approximately normally distributed. Compute the natural tolerance limits for this process.A. [48.68, 52.32]
B. [49.89, 51.11]
C. [48.86, 52.14]
D. [46.75, 54.25]
Answer
This answer is hidden. It contains 2 characters.
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