Reconsider the loan application data in Table 7E.2. Set up the fraction nonconforming control chart for this process. Use the standardized control chart approach. Plot the preliminary data in Table 7E.2 on the chart. Is the process in statistical control? Compare this control chart to the one based on variable-width control limits in Exercise 7.5.
Answer to relevant QuestionsA control chart is to be established on a process producing refrigerators. The inspection unit is one refrigerator, and a common chart for nonconformities is to be used. As preliminary data, 16 non Use a c chart for ...Suppose that we wish to design a control chart for nonconformities per unit with L-sigma limits. Find the minimum sample size that would result in a positive lower control limit for this chart. c: nonconformities per unit; ...A process is in statistical control with x =20 and s =1.2. Specifications are at LSL = 16 and USL = 24. (a) Estimate the process capability with an appropriate process capability ratio. (b) Items that are produced below the ...A process is in statistical control with x = 202.5 and s = 2.0. Specifications are at LSL = 196 and USL = 206. (a) Estimate the process capability with an appropriate process capability ratio. (b) What is the potential ...Consider the piston ring data in Table 6.3. Estimate the process capability assuming that specifications are 74.00 ±0.035 mm.
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