SPC Demystified Contents
Chapter 1 Analyzing Process Data
Chapter Objectives
The Application of Statistics to Processes
A Process Defined
Population versus Process Statistics
Statistical Process Control Concepts
Requirements versus Control
Control Chart Interpretation
Reaction to Special Cause Variation
Interpretation Relative to Requirements
Summary
Quiz
Chapter 2 Data Collection
Chapter Objectives
Data Properties
Metrics
Business-Level Metrics
Operational and Process Metrics
Chart Selection
Sampling Requirements
Rational Subgroups
Subgroup Size Considerations
Frequency of Subgroup Collection
Number of Subgroups Needed
Summary
Quiz
Chapter 3 Determining Suitability to Requirements
Chapter Objectives
Overview
Capability Indices Assuming Normality of Process Data
Cp for Bilateral Specifications
Cpk Index for Bilateral or Unilateral Specifications
Interpretation
Estimating Process Variation
Errors in Estimating Process Capability
Identifying Non-Normality in Process Data
Capability Estimates for Non-Normal Processes
Process Performance Indices
Summary
Quiz
Chapter 4 Attribute Control Charts
Chapter Objectives
Description and Use
The p Chart
The Np Chart
The u chart
The c chart
Interpretation
Sampling Considerations
Summary
Quiz
Chapter 5 X Charts
Chapter Objectives
Chart Construction
Sigma Chart
Interpretation
Process Shift Example
Subgroup Formation Concerns
Multistream Processes
Autocorrelated Processes
Short Run Applications
Summary
Quiz
Chapter 6 Charts for Individuals Data
Chapter Objectives
Description and Use
Moving Average Charts
Exponentially Weighted Moving Average (EWMA) Charts
Process Capability and Distributional Assessment
Individual X Charts
Example X Chart Application in Asthma Care
Summary
Quiz
Chapter 7 Process Improvement
Chapter Objectives
Overview
Stratification
Regression Analysis
Residuals Analysis
Multiple Regression
Designed Experiments
Defining the Experiment
Analyzing Experimental Results
Summary
Quiz
Chapter 8 Measurement Systems Analysis
Chapter Objectives
Overview
Stability
Linearity
Repeatability & Reproducibility (R&R)
Range Method of R&R Analysis
Destructive Testing
ANOVA Method
Summary
Quiz
Questions and Examples from Practitioners
Final Exam
Answers to Quizzes & Final Exam
Appendix: Control Chart Constants
References
