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Question 1(2+2 points ) A quality control inspector has taken 4 samples with five observations each, measuring the volume of chips per bag. If the
Question 1(2+2 points ) A quality control inspector has taken 4 samples with five observations each, measuring the volume of chips per bag. If the average range for the fours samples is 0.3 ounce and the grand mean of the observations is 14 ounces, find the control limits for X-bar and R-charts
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