Question: A process has an in control fraction nonconforming of p
A process has an in-control fraction nonconforming of p = 0.01. The sample size is n = 300. What is the probability of detecting a shift to an out-of-control fraction nonconforming of p = 0.05 on the first sample following the shift?
Answer to relevant QuestionsA banking center has instituted a process improvement program to reduce and hopefully eliminate errors in their check processing operations. The current error rate is 0.01. The initial objective is to cut the current error ...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 ...Consider the paper-making process in Exercise 7.49. Set up a u chart based on an average sample size to control this process. In Exercise 7.49 Find 0.900 and 0.100 probability limits for a c chart when the process average is equal to 16 nonconformities. A control chart for nonconformities is to be constructed with c 2.0, LCL = 0, and UCL such that the probability of appoint plotting outside control limits when c = 2.0 is only 0.005. (a) Find the UCL. (b) What is the type I ...
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