A financial services company monitors loan applications. Every day 50 applications are assessed for the accuracy of the information on the form. Results for 20 days are
where Di is the number of loans on the ith day that re determined to have at least one error. What are the center line and control limits on the fraction nonconforming control chart?
Answer to relevant QuestionsThe data in Table 7E.5 represent the results of inspecting all units of a personal computer produced for the last 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 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 ...A control chart for fraction nonconforming indicates that the current process average is 0.03. The sample size is constant at 200 units. (a) Find the three-sigma control limits for the control chart. (b) What is the ...Note that in Exercise 7.29 there are only four different sample sizes; n = 100, 150, 200, and 250. Prepare a control chart that has a set of limits for each possible sample size and show how it could be used as an ...A fraction nonconforming control chart is to be established with a center line of 0.01 and two-sigma control limits. (a) How large should the sample size be if the lower control limit is to be nonzero? (b) How large should ...
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