Process Capability Homework 1 Ke Main Assumptions Process Must Satisfied Orming Process Ca Q29103817

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Process Capability Homework 1. What are the ke main assumptions about a process that must be satisfied before orming a process capability analysis 2. Consider a heat treating process for steel. This steel is to be used in constructing bridges and the customer has set specifications on the steel at 50 +/- 5 psi. Based on a sample of n-50, we conclude from an NPP that the assumption of normality is reasonable, and we calculate a sample average of 48 psi and a sample standard deviation of 1psi. a) What are the USL and the LSL for this process? b) What are the UNTL and the LNTL for this process? c) What is a point estimate of Cp for this process? d) What is a point estimate of Cpe for this process? e) What is a point estimate of Cpm for this process ? f) Calculate a 95% C.1, for the mean of the process g) Calculate a 95% C.1. for Cp h) Calculate a 95% C.1. for Cpk i) Calculate a 95% C.I. for Cpm j) Estimate the process fraction nonconforming? Show transcribed image text