A sample of five units of product is taken from a production process every hour. The results in Table 10E.12 are obtained. Assume that the specifications on this quality characteristic are at 1.0015 and 1.0035. Set up the R chart on this process. Set up a control chart to monitor the tool wear.
Answer to relevant QuestionsPrinted circuit boards used in several different avionics devices are 100% tested for defects. The batch size for each board type is relatively small, and management wishes to establish SPC using short-run version of the c ...A sample of five units is taken from a process every half hour. It is known that the process standard deviation is in control with σ = 2.0. The x values for the last 20 samples are shown in Table 10E.7. Specifications on ...Suppose that there are p = 4 quality characteristics, and in correlation form all four variables have variance unity and all pairwise correlation coefficients are 0.75. The in-control value of the process mean vector is ...Consider the p = 9 process variables in Table 11.5 (a) Perform a PCA on the first 30 observations. Be sure to work with the standardized variables. (b) How much variability is explained if only the first r = 3 principal ...Use the data in Exercise 12.9 to construct a bounded adjustment chart. Use = 0.2 and set L = 4. How does the bounded adjustment chart perform relative to the integral control adjustment procedure in part (a) of Exercise ...
Post your question