Question: how do i get A2 ? ik the answer is 0.58 3. A quality control inspector has taken four samples with five observations each at
how do i get A2 ? ik the answer is 0.58
3. A quality control inspector has taken four samples with five observations each at the Beautiful Shampoo Company, measuring the volume of shampoo per bottle. If the average range for the four samples is 0.4 ounce and the average mean of the observations is 19.8 ounces, develop 3-sigma control limits for the bottling operation. Solution
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