Analyze the homicide data in Exercise 7.76 using a moving average control chart with w = 5. Does potential non-normality in the data pose a concern here?
Answer to relevant QuestionsShow that if the process is in control at the level µ, the exponentially weighted moving average is an unbiased estimator of the process mean. Show how to modify the control limits for the moving average control chart if rational subgroups of size n > 1 are observed every period, and the objective of the control chart is to monitor the process mean. Rework Exercise 9.4 using the standardized CUSUM parameters of h = 8.01 and k = 0.25. Compare the results with those obtained previously in Exercise 9.4. What can you say about the theoretical performance of those two CUSUM ...Specifications on a bearing diameter are established at 8.0 ± 0.01 cm. Samples of size n = 8 are used, and a control chart for s shows statistical control, with the best current estimate of the population standard deviation ...The data shown in Table 10E.9 are concentration readings from a chemical process, made every 30 minutes (read down, then across from left to right). (a) Calculate the sample autocorrelation function and provide an ...
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