Kaminski et al. (1992) present data on the number of orders per truck at a distribution center. Some of this data is shown in Table 6E.19. Set up a c chart for the number of orders per truck. Is the process in control?
Answer to relevant QuestionsA process that produces titanium forgings for automobile turbocharger wheels is to be controlled through the use of a fraction nonconforming chart. Initially, one sample of size 150 is taken each day for 20 days, and the ...A maintenance group improves the effectiveness of its repair work by monitoring the number of maintenance requests that require a second call to complete the repair. Twenty weeks of data are shown in Table 6E.7. a. Find ...Consider rectifying inspection for single sampling. Develop an AOQ equation assuming that all defective items are removed but not replaced with good ones. a. Find the appropriate Dodge-Romig plan. b. Find the ATI for this plan, assuming that incoming lots are 1% defective. c. Suppose that our estimate of the supplier’s process average is incorrect and that it is really 0.25% ...a. Draw the OC curve of this sampling plan. b. If lots are of a quality that is near the supplier’s long-term process average, what is the average total inspection at that level of quality?
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