MGCR 472 Chapter Notes - Chapter 19: Control Chart, Type I And Type Ii Errors, Central Limit Theorem
5 Dec 2017
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19 quality control: quality: ability of a product or serv to consistently meet or exceed customer expectations, consumers view certain aspects more important associate these with quality. Useful life in miles, resistance to rust & corrosion. Work holds up over time: perceived quality top-rated car, service after sale handling of complaints &/or. Determinants of quality: quality of design, capability of production (m/c, equip. , labor, quality of conformance, ease of use, after sales service quality. Consequences of poor quality: loss of customers, liability (due to damage & injury, productivity problems, costs. Quality control: purpose: to assure that processes are performing in the desired manner (conformance quality) How much/how often to inspect: cost trade-off: Cost of missing defective units: low cost-high volume items: less inspection. Paper clips, pens, nails, etc: high cost-low volume items: more inspection. Airplanes, medical equipment, etc: manual or labor intensive operations: more inspection.
