Question: Surface defects have been counted on 25 rectangular steel plates
Surface defects have been counted on 25 rectangular steel plates, and the data are shown in Table 6E.9. Set up a control chart for nonconformities using these data. Does the process producing the plates appear to be in statistical control?
Answer to relevant QuestionsA 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 ...The number of nonconforming switches in samples of size 150 is shown in Table 6E.2. Construct a fraction nonconforming control chart for these data. Does the process appear to be in control? If not, assume that assignable ...A production line assembles electric clocks. The average number of nonconformities per clock is estimated to be 0.75. The quality engineer wishes to establish a c chart for this operation using an inspection unit of six ...A process that produces titanium forgings for automobile turbocharger wheels is to be controlled through the use of a fraction nonconforming chart. Initially, one sample of size 150 is taken each day for 20 days, and the ...Draw the primary and supplementary OC curves for a double-sampling plan with . If the incoming lots have fraction nonconforming , what is the probability of acceptance on the first sample? What is the probability of final ...
Post your question