Combo chart
Output vs defect rate
Units built against the defect rate.
What this chart shows
Manufacturing's oldest quality chart. If the defect line rises with the bars, the line is running too hot.
The data behind it
Every number on the chart, free to copy and reuse. Download CSV
| Series | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Units produced | 4,200 | 4,600 | 4,400 | 5,100 | 5,400 | 5,800 | 6,100 | 5,900 | 6,400 | 6,800 | 7,100 | 6,900 |
| Defect rate % | 1.2 | 1.1 | 1.3 | 1.4 | 1.6 | 1.9 | 2.2 | 2 | 2.3 | 2.6 | 2.9 | 2.5 |
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