Content: Section I: Background Introduction to Six Sigma Quality Definitions Defects Per Million Opportunities (DPMO) DPMO Example 1 DPMO Example 2 DPMO Example 3 DMAIC Approach Book Outline References Quality Analysis and Improvement Tools/Techniques Used in This Book Confidence Interval Estimation Hypothesis Testing Chi-Square Analysis Process Capability Analysis Binary Logistic Regression Item Analysis Cluster Analysis Mixture Design and Analysis of Experiments Multivariate Analysis Pareto Chart Cause-and-Effect Diagram Gage Repeatability and Reproducibility Analysis Taguchi Design and Analysis of Experiments Factorial Design and Analysis of Experiments Statistical Control Charts Normality Test Analysis of Variance (ANOVA) References Section II Six Sigma Case Studies Confidence Intervals to Assess Variation in Fat Content at a Fast-Food Restaurant Define Phase Measure Phase Analyze Phase Improve Phase Control Phase Hypothesis Testing for Quality Control at a Manufacturing Company Define Phase Measure and Analyze Phases Test 1 Test 2 Test 3 Improve and Control Phases Chi-Square Analysis to Verify Quality of Candy Packets Define Phase Measure Phase Analyze Phase Improve and Control Phases Process Capability Analysis at a Manufacturing Company Define Phase Measure Phase Analyze Phase Improve Phase Control Phase Binary Logistic Regression to Predict Customer Satisfaction at a Restaurant Define Phase Measure Phase Analyze Phase Improve and Control Phases Item Analysis and Cluster Analysis to Gather ''Voice of the Customer'' (VOC) Data from Employees at a Service Firm Define Phase Measure Phase Analyze Phase Improve and Control Phases Mixture Designs to Optimize Pollution Level and Temperature of Fuels Define Phase Measure Phase Analyze Phase Design and Verify Phases Multivariate Analysis to Reduce Patient Waiting Time at a Medical Center Define Phase Measure Phase Analyze Phase Improve Phase Control Phase Pareto Chart and Fishbone Diagram to Minimize Recyclable Waste Disposal in a Town Define and Measure Phases Analyze Phase Improve and Control Phases Measurement System Analysis at a Medical Equipment Manufacturer Define Phase Measure Phase Analyze, Improve, and Control Phases Taguchi Design to Improve Customer Satisfaction of an Airline Company Define Phase Measure Phase Analyze Phase Improve and Control Phases Factorial Design of Experiments to Optimize a Chemical Process Define Phase Measure Phase Analyze Phase Improve and Control Phases Chi-Square Test to Verify Source Association with Parts Purchased and Products Produced Define Phase Measure Phase Analyze Phase Improve and Control Phases Appendix Index
Abstract: Six Sigma is one of the most widely used quality improvement methodologies today, both in manufacturing and service industries. Minitab® is a statistical software package that is often used in conjunction with Six Sigma projects. This book illustrates the application of Minitab® for Six Sigma projects, using case studies in a variety of sectors, such as healthcare, manufacturing, airline, and fast food. Detailed steps and screenshots are provided to explain how to use a number of quality analysis and improvement tools in Minitab®. Figures will include Minitab® screenshots and Minitab