Suppose a form has 10 fields of information. If 15 forms are sampled and 21 defects are found in the sample. What is the DPMO?
Suppose a form has 10 fields of information. If 15 forms are sampled and 21 defects are found in the sample. What is the DPMO?
DPMO - Defects per Million Opportunities - Part of the Six Sigma method is to calculate the number of defects that the process delivers. There are various metrics used to evaluate defects: Defects per Unit (DPU), Defects per Opportunity (DPO) and Defects-per-Million-Opportunities (DPMO). It is defined as the ratio of the number of defects in a sample to the total number of defect opportunities multiplied by 1 million. DPMO is a long-term measure of process performance. It is a measure of the error rate of a process. The metric tells how good the process is towards committing mistakes.
Steps to calculate DPMO -
- Determine the total number of units to be sampled
- Determine the number of defects opportunities per unit
- Determine the total number of defects opportunities for the sample
- Count the actual defective opportunities within the sample group
- Divided the total defects by the total opportunities and multiply with 1 million
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