Question: 6.5 The data shown in Table 6E.4 are the deviations from nominal diameter for holes drilled din a carbon-fiber composite material used in aerospace manufacturing.

6.5 The data shown in Table 6E.4 are the6.5 The data shown in Table 6E.4 are the

6.5 The data shown in Table 6E.4 are the deviations from nominal diameter for holes drilled din a carbon-fiber composite material used in aerospace manufacturing. The values reported are deviations from nominal in ten- thousandths of an inch. TABLE 6E.4 Hole Diameter Data for Exercise 6.9 Sample Number 4 12 14 15 1 -30 +50 -20 +10 +30 2 0 +50 -60 -20 +30 3 -50 +10 +20 +30 +20 4 -10-10 +30 -20 +50 5 +20-40 +50 +20 +10 6 0 0 +40 - 40 +20 7 0 0 +20 -20 -10 8 +70 -30 +30 -10 0 g 0 0 +20 -20 +10 10 +10 +20 +30 +10+50 11 +40 0 +20 0 +20 12 +30 +20 +30 +10 +40 13 +30-30 0 +10 +10 14 +30 -10 +50-10-30 15 +10 -10 +50 +40 0 16 0 0 +30 -10 0 17 +20 +20 +30 +30 -20 18 +10-20 +50 +30 +10 19 +50 -10 +40 +20 0 +50 0 0 +30 +10 20 (a) Set up and R charts on the process. Is the process in statistical control? (b) Estimate the process standard deviation using the range method. Assume L = 3 (c) Find the tolerance limits for this process. Documentation Required Part a. . Specify all formulas utilized. Document each step, and whether the limits computed are trial or final control limits. Specify why any data is excluded. Part b. What formulas are being utilized? What assumption justifies the use of the formulas? Part c. . What formulas are being utilized? What assumption justifies the use of the formulas

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