Six Sigma & Quality Statistics: DPMO, Cp/Cpk & Control Charts
DPU, DPMO, rolled throughput yield, sigma levels, Pareto, Cp/Cpk/Ppk, X-bar/R and p-charts, gage R&R, before/after tests and the cost of poor quality: 8 graded labs at Green Belt level. Not an official belt certification; no affiliation with ASQ or IASSC.
The first lesson is free — no account needed.
About this course
A Six Sigma course that works through the quality statistics of one valve manufacturer at Green Belt level, in a spreadsheet that checks every cell. You measure defects per unit, DPMO and first-pass yield, uncover the hidden factory with rolled throughput yield and convert yields into sigma levels with NORM.S.INV and the 1.5 shift, rank defects in a Pareto chart, judge whether a bore meets its tolerance with Cp, Cpk, Pp and Ppk, set X-bar and R chart limits with the A2, D3 and D4 constants, build a p-chart with a different sample size every day, test the gauge with a simplified gage R&R and prove a scrap reduction with T.TEST before putting a dollar value on the cost of poor quality. The certificate is not an official belt certification, and Tabellab has no affiliation with ASQ or IASSC. The first lab is free.
Lessons
- Defects per Unit, DPMO & First-Pass YieldFree
- Rolled Throughput Yield & the Sigma Level (NORM.S.INV) Pro
- Pareto Analysis of Defects (with a Pareto Chart) Pro
- Process Capability: Cp, Cpk, Pp & Ppk Pro
- X-bar & R Control Charts with A2, D3, D4 Pro
- p-Chart for the Proportion Defective Pro
- Measurement System Basics: Simplified Gage R&R Pro
- Before/After Test (T.TEST), Cost of Poor Quality & Savings Pro