A control chart for the fraction nonconforming is to be established using a center line of p = 0.10. What sample size is required if we wish to detect a shift in the process fraction nonconforming to 0.20 with probability 0.50?
Answer to relevant QuestionsDo points that plot below the lower control limit on a fraction nonconforming control chart (assuming that the LCL > 0) always mean that there has been an improvement in process quality? Discuss your answer in the context of ...A control chart is used to control the fraction nonconforming for a plastic part manufactured in an injection molding process. Ten subgroups yield the data in Table 7E.9. (a) Set up a control chart for the number ...Analyze the data in Exercise 7.29 using an average sample size. In Exercise 7.29 A fraction nonconforming control chart with n = 400 has the following parameters: UCL = 0.0809, Center line = 0.0500, LCL = 0.0191. (a) Find the width of the control limits in standard deviation units. (b) What would be the ...The commercial loan operation of a financial institution has a standard for processing new loan applications in 24 hours. Table 7E.2 shows the number of applications processed each day for the last 20 days and the number of ...
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