Consider the group control charts constructed in Exercise 10.5. Suppose the next ten samples are in Table 10E.5. Plot the new data on the control charts and discuss your findings.
Answer to relevant QuestionsReconsider the data in Exercises 10.5 and 10.6. Suppose the process measurements are individual data values, not subgroup averages. In Exercise 10.5 (a) Use observations 1-20 in Exercise 10.5 to construct appropriate group ...Suppose that we have p = 3 quality characteristics, and in correlation form all three variables have variance unity and all pairwise correlation coefficients are 0.8. The in-control value of the process mean vector is μ′ ...Consider the cascade process data in Table 11.5. (a) Set up an individuals control chart on y2. (b) Fit a regression model to y2, and set up an individuals control chart on the residuals. Comment on the differences between ...Consider a T2 control chart for monitoring p = 6 quality characteristics. Suppose that the subgroup size is n= 3 and there are 30 preliminary samples available to estimate the sample covariance matrix. m = 30 preliminary ...Consider the data in Table 12.1. Suppose that an adjustment is made to the output variable after every observation. Compare the performance of this chart to the one in Table 12.1 and Figure 12.12.
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