Copy of 2010-06-15_050939_Small_boxes_of_NutraFlakes_cereal_are_labeled

Copy of 2010-06-15_050939_Small_boxes_of_NutraFlakes_cereal_are_labeled

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Small boxes of NutraFlakes cereal are labeled "net weight 10 ounces." Each hour, random samples of size n = 4 are weighed to check proce Using these data, construct limits for x- and R-charts. Is the process in control? What other steps should the QC department follow at this p Time Box 1 Box 2 Box 3 Box 4 Sample Means Sample Range 9:00 AM 9.8 10.4 9.9 10.3 10.1 0.6 10:00 AM 10.1 10.2 9.9 9.8 10 0.4 11:00 AM 9.9 10.5 10.3 10.1 10.2 0.6 Noon 9.7 9.8 10.3 10.2 10 0.6 1:00 PM 9.7 10.1 9.9 9.9 9.9 0.4 The control limits are: (a) For Mean weight, LCL = 9.6605 ounces, UCL = 10.3895 ounces and (b) For The process is in control since there are no points lying outside the control limits in both x-bar chart and See all the sheets for the calculations and tables. The process is in statistical control.                            Weight Time           Box 1     Box 2     Box 3       Box 4 9 a.m.          9.8       10.4      9.9         10.3
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Copy of 2010-06-15_050939_Small_boxes_of_NutraFlakes_cereal_are_labeled

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