Before/After Test (T.TEST), Cost of Poor Quality & Savings
This lesson is part of the course
In this lesson
You prove that the porosity project really cut scrap with a t-test, then put a dollar value on the cost of poor quality, the annual saving and the payback.
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Lessons in this course
- Defects per Unit, DPMO & First-Pass Yield Locked
- Rolled Throughput Yield & the Sigma Level (NORM.S.INV) Locked
- Pareto Analysis of Defects (with a Pareto Chart) Locked
- Process Capability: Cp, Cpk, Pp & Ppk Locked
- X-bar & R Control Charts with A2, D3, D4 Locked
- p-Chart for the Proportion Defective Locked
- Measurement System Basics: Simplified Gage R&R Locked
- Before/After Test (T.TEST), Cost of Poor Quality & Savings Locked