Consider the two processes shown in Table 8E.1 (the sample size n = 5).
Specifications are at 100 ± 10. Calculate Cp, Cpk, and Cpm and interpret these ratios. Which process would you prefer to use?
Answer to relevant QuestionsSuppose that 20 of the parts manufactured by the processes in Exercise 8.11 were assembled so that their dimensions were additive; that is, x x1 x2 Specifications on x are 2,000 200. Would you prefer to ...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 a simplified version of equation 8.19 (below). Note that this was obtained by assuming that the term 9n in equation 8.19 will probably be large. Rework Exercise 8.24 using this equation and compare your answer to ...Reconsider the gauge R&R experiment in Exercise 8.34. Calculate the quantities SNR and DR for this gauge. Discuss what information these measures provide about the capability of the gauge. An assembly of two parts is formed by fitting a shaft into a bearing. It is known that the inside diameters of bearings are normally distributed with mean 2.010 cm and standard deviation 0.002 cm, and that the outside ...
Post your question