6xsigma, Voice of the Process, USL-LSL, Voice of the Customer, centered process, Capability goals 1, minimum variability, Capability goals 2, instrument wear and tear, a source of common cause variation, poor lot of raw material, a source of special cause variation, common cause variation, within subgroup variation, special cause variation, between subgroup variation, I-MR chart, control chart when subgroup size is 1, Xbar-R chart, control chart when subgroup size is 5, Xbar-s chart, control chart when subgroup size is 10, normal distribution, Capability requirement 1, stable process, Capability requirement 2, sigma-hat = MR-bar/d2, estimate of process standard deviation for I-MR chart, sigma-hat = R-bar/d2, estimate for process standard deviation for Xbar-R chart, sigma-hat = s-bar/c4, estimate of process standard deviation for Xbar-s chart, Cp=(USL-LSL)/6sigma, Potential capability index, Cpk=min(Cpu, Cpl), Process capability index (actual capability), (USL-Xbar)/3sigma, Cpu, (Xbar-LSL)/3sigma, Cpl

Process Capability lecture 1

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