Question: The data in Table 6E 1 give the number of nonconforming
The data in Table 6E.1 give the number of nonconforming bearing and seal assemblies in samples of size 100. Construct a fraction nonconforming control chart for these data. If any points plot out of control, assume that assignable causes can be found and determine the revised control limits.
Answer to relevant QuestionsWhy is the np chart not appropriate with variable sample sizes? A paper mill uses a control chart to monitor the imperfection in finished rolls of paper. Production output is inspected for 20 days, and the resulting data are shown in Table 6E.10. Use these data to set up a control chart ...An automobile manufacturer wishes to control the number of nonconformities in a subassembly area producing manual transmissions. The inspection unit is defined as four transmissions, and data from 16 samples (each of size 4) ...The data in Table 6E.3 represent the results of inspecting all units of a personal computer produced for the past 10 days. Does the process appear to be in control? A control chart for the fraction nonconforming is to be established using a center line of . What sample size is required if we wish to detect a shift in the process fraction nonconforming to 0.20 with probability 0.50?
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