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Twenty-five samples of size 50 are chosen from a plastic-injection molding machine producing small containers. The number of nonconforming containers for each sample is
Twenty-five samples of size 50 are chosen from a plastic-injection molding machine producing small containers. The number of nonconforming containers for each sample is shown in the table below. a) Calculate the proportion of nonconforming (complete blank column). Show calculations for the first sample b) For the appropriate control chart, compute CL, UCL, LCL (by Hand and show all calculations) c) Construct appropriate control charts and analyze data Sample 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Date 10/6 10/6 10/6 10/6 10/7 10/7 10/7 10/7 10/8 10/8 10/8 10/8 10/9 10/9 10/9 10/9 10/10 10/10 10/10 10/10 Time Number of Items Inspected, n 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 Number of Nonconforming Items, x 4 2 5 3 2 1 3 2 5 4 3 5 5 2 3 2 4 10 4 3 Proportion Nonconforming 21 22 23 24 25 10/11 10/11 10/11 10/11 10/11 50 50 50 50 50 25434
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