# Question: Specifications on a bearing diameter are established at 8 0

Specifications on a bearing diameter are established at 8.0 ± 0.01 cm. Samples of size n = 8 are used, and a control chart for s shows statistical control, with the best current estimate of the population standard deviation S = 0.001. If the fraction of nonconforming product that is barely acceptable is 0.135%, find the three-sigma limits on the modified control chart for this process.

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