Apply the Western Electric rules to the control chart presented in Exercise 5.16. Would these rules result in any out-of-control signals?
Answer to relevant QuestionsConsider the time-varying process behavior shown below. Match each of these several patterns of process performance to the corresponding and R charts shown in Figures (a) to (e) below. b. Estimate the process mean and standard deviation. c. Does fill weight seem to follow a normal distribution? Discuss type I and type II errors relative to the control chart. What practical implication in terms of process operation do these two types of errors have? In exercise The weights of nominal 1-kg containers of a concentrated chemical ingredient are shown in Table 5E.14. Prepare a normal probability plot of the data and estimate process capability.
Post your question