Consider the package weight data in Exercise 8.13. Suppose there is a lower specification at 0.985 kg. Calculate an appropriate process capability ratio for this material. What percentage of the packages produced by this process is estimated to be below the specification limit?
Answer to relevant QuestionsTable 8E.3 presents data on the cycle time (in hours) to process small loan applications. Prepare a normal probability plot of these data. The loan agency has a promised decision time to potential customers of 24 hours. ...Suppose that a quality characteristic has a normal distribution with specification limits at USL = 100 and LSL = 90. A random sample of 30 parts results in x = 97 and s = 1.6. (a) Calculate a point estimate of Cpk. (b) Find ...Consider the situation in Example 8.7. A new gauge is being evaluated for this process. The same operator measures the same 20 parts twice using the new gauge and obtains the data shown in Table 8E.8. (a) What can you say ...A product is packaged by filling a container completely full. This container is shaped as shown in the figure. The process that produces these containers is examined, and the following information collected on the three ...Sample of 25 measurements on a normally distributed quality characteristic has a mean of 85 and a standard deviation of 1. Using a confidence probability of 0.95, find a value such that 90% of the future measurements on this ...
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