DSCI 304 Study Guide - Midterm Guide: Control Chart, Central Tendency, Process Capability
12 Nov 2016
School
Department
Course
Professor
Document Summary
Quality control: a process that evaluates output relative to a standard and takes corrective action when output doesn"t meet standards. If results are acceptable no further action is required. Inspection alone is not is generally not sufficient to achieve a reasonable level of quality. => most organization rely upon some inspection and a great deal of process control to achieve an acceptable level of quality. Inspection: an appraisal activity that compares goods or services to a standard. Inspection issues: how much to inspect and how often, at what points in the process to inspect, whether to inspect in a centralized or on-site location, whether to inspect attributes or variables. Sampling and corrective action are only a part of the control process. What is a control chart: a time ordered plot of representative sample statistics obtained from an ongoing process (e. g. sample means), used to distinguish between random and nonrandom variability.
