Following their manufacture, plastic shims are sampled at periodic intervals and their thickness (in millimeters) measured. Each sample consists of n = 3 shims, and the following data have been collected for the past 20 samples. Given these measurements, use one or more appropriate 3-sigma control charts in evaluating whether the process is in control.
Answer to relevant QuestionsFor each of the following, indicate the scale of measurement that best describes the information. a. In 2008, Dell Corporation had approximately 78,000 employees. Source: Fortune, May 4, 2009, p. F-48. b. USA Today reports ...Jeff Bowlen, a labor relations expert, has collected information on strikes in various industries. a. Jeff says, “Industry A has been harder hit by strikes than Industry B.” In what scale of measurement is this ...The current values of the stock portfolios for 80 clients of an investment counselor are as listed in data file XR02017. Use your computer statistical software to generate a frequency distribution and histogram describing ...An adhesives manufacturer periodically selects a sample of its product and glues 6 toothpicks together, in pairs. A measurement is then made of the number of pounds required to separate the toothpicks. The following data ...Given the conclusion reached in the solution for Exercise 20.74, with the data in file XR20074, is it appropriate to compute the Process Capability Index (Cpk) for this process? If so, determine the overall mean and standard ...
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