Description
Who it’s for: anyone who knows the ideas, for example from the Quality season, and wants the calculations to become second nature, or to check their figures before a meeting.
What’s inside: 5 self-marking practice tools, with an end-of-season quiz and a self-marking Excel workbook.
- Defect density
- First-pass yield
- Defect escape rate
- Mean time to resolve defects
- Cost of poor quality %
How it works: pick a tool, choose your industry and currency, work out the answer and check it. Press New numbers and go again, as often as you like; the working shows when you get it wrong.






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