Question: 1. what is the upper limit ? 2. what is the center line ? 3. what is the lower limit ? A quality inspector took
A quality inspector took six samples, each with twenty observations, of the weight of a bagging process, in pounds. The sample means and ranges are shown below. Use this information to obtain a three-sigma control chart (z=3) for the mean weight. Process standard deviation is 0.27 . Use that control chart to answer the questions below. Do not round intermediate calculations. Round your final answers to three decimal points
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