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Problems 5-7 (1pt each) DK and Anamika run a toy factory and need a 3-sigma X control chart to monitor the amount of red dye

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Sample mean for time period i 3 : 2 đi) 20 +21+1 18+19+22 79.6667 21+22+23 220000 Here, l= 21, r= 1.5 ECL E M-30 . = 21 - 3x1

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