Quality and Reliability · Quality Management · 1 mark · Numerical answer
Fifteen gearbox features are critical to quality. Of 40000 gearboxes produced last quarter, 1500 defects occurred in these features. Find DPMO (integer).
Opportunities total $40000(15)=600000$. Thus $\mathrm{DPMO}=1500/600000\times10^6=\mathbf{2500}$. Count opportunities by features, not merely by products.
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