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REVIEW SHEET FOR MIDTERM Topics Introduction to Statistical Quality Control 1. Definition of Quality (p. 6, middle one) 2. Cost of Quality 3. Review of Elementary Statistics** a. Stem & Leaf Plot b. Histograms c. Box Plots, Box & Whisker d. Mean, Mode, Median computations e. Variance, Standard Deviation, & Range computations f. Discrete / Continuous Distributions Simple Comparisons 1. Terms a. Statistic b. Mean / Average c. Variance & Standard Deviation d. Sampling Distributions e. Normal Dist f. Chi-square Dist g. t-Dist h. F-Dist 2. Null hypothesis & Alternate hypotheses a. One-sided b. Two-sided 3. Type I & Type II Error a. Power of a Test b. Significance of a Test c. P-value d. Critical Region e. Confidence Interval 4. Hypothesis Testing a. Means tests i. Table ii. Mean Known iii. Mean Estimated iv. Variance / Standard Deviation Known v. Variance / Standard Deviation Estimated vi. Operating Characteristic Curve b. Variance tests i. Table ii. Variance / Standard Deviation Known iii. Variance / Standard Deviation Estimated 5. Assumption Assessment a. Normal Probability Plots b. Normality c. Equal Variance Methods & Philosophy of SPC 1. Terms a. Chance (common) Causes b. Assignable Causes c. Population / Sample mean, variance, grand mean d. Statistical Control e. Specification Limits 2. ‘Magnificent Seven’ tools a. Histogram / Stem & Leaf b. Check Sheet c. Pareto Chart d. Cause & Effect (Fishbone) Diagram e. Defect Concentration Diagram f. Scatter Diagram g. Control Chart* * Not covered on Midterm I exam, covered on Midterm II ** Assumed from previous coursework, calculation is incidental to the exams.