Question: Suppose you have collected four samples, where each sample has eight observations. The sample mean and range of each sample are as follows: (a) What

Suppose you have collected four samples, where each sample has eight observations. The sample mean and range of each sample are as follows: (a) What is the upper control limit for the R chart? Answer with three decimal places. (b) What is the lower control limit for the x(x-bar)-chart? Answer with three decimal places

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