Statit Quality Practice Tips for Manufacturing

• Adding Cpm to a Process Capability Chart
• Central Limit Theorem
• Common Language Descriptions of QC Formulas
• Construction of a Control Chart
• Control Charts for Skewed Time-Based Data
• Cpk vs. Ppk
• Creating Xbar Charts with Summarized Data
• Criteria for Lack of Control
• Designing Spreadsheets for Data Import
• Detecting an Improper Sampling Technique
• Detecting and Correcting Manufacturing Problems
• Discussions on Normality
• DMAIC—Identifying Rejects is Just the Beginning
• Don't Overcorrect
• Effective Use of Control Charts
• Estimating Standard Deviation
• Evaluating Process Changes
• Evaluating Process Improvements or Methods using Cpk
• Fine-Tuning Control Charts: Alternative to X-bar R and X-bar S Charts
• Histogram with Two or More Peaks
• How to Get More from a Metric Like PPM-D
• The Interrupted Individual and Moving Range Chart
• Measurement System Analysis for Process Improvement
• Non-Normal Effects on Cpk
• Normal Probability Plot for Estimating Process Capability
• Normal Probability Plot Interpretation
• P-Charts are Best for Yield Data
• Pareto Charts
• p, c, & u...Moving Beyond the i Chart for Manufacturing
• Probability Plot Use in QC
• Rational Subgrouping
• Sample Size Considerations for P-Charts
• Subgroup Sizes for Attribute Charts
• Testing for "Near-Normality": The Probability Plot
• Use of the Range Chart
• Using an Xbar & S Chart to Compare Samples from Different Applications
• Using Other than Three Sigma Limits on a Control Chart
• Using p Charts to Solve a Steel Mill Quality Problem
• Using Pareto & Paynter Charts in a Quality Improvement Program
• The Xbar & R Chart Says You're in Control. Are You?
• The Xbar and s Chart with an Arbitrary Number of Subgroups and Varying Subgroup Sizes
• X-Bar Charts vs. Cumulative Sum Chart