The weights of nominal 1-kg containers of a concentrated chemical ingredient are shown in Table 8E.2. Prepare a normal probability plot of the data and estimate process capability. Does this conclusion depend on process stability?
Answer to relevant QuestionsConsider 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 ...A company has been asked by an important customer to demonstrate that its process capability ratio Cp exceeds 1.33. It has taken a sample of 50 parts and obtained the point estimate Cp = 152. Assume that the quality ...Consider the piston ring data in Table 6.3. Estimate the process capability assuming that specifications are 74.00 ±0.035 mm. Two parts are assembled as shown in the figure. The distributions of x1 and x2 are normal, with 1 20,1 0.32 19.6, 2 0.4 . The specifications of the clearance between the mating parts are 0.5 ...A sample of ten items from a normal population had a mean of 300 and standard deviation of 10. Using these data, estimate a value for the random variable such that the probability is 0.95 that 90% of the measurements on this ...
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