Practice Quiz

Six Sigma Green Belt

Category - Black Belt

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Penmanship Inc. produces high quality pencils for a select group of customers. Within each production cycle of 10,000 pencils, there are two types of defects that can occur at the following rates: wrong dimensions (80 defects) and faulty eraser (45 defects). What is the Defects per Unit (DPU) measurement of this process?
  1. 0.0125
  2. 0.0215
  3. 0.0275
  4. 0.0575
Explanation
Answer: A - The DPU measurement of this process is 0.0125.

Key Takeaway: Defects per Unit or DPU is a process performance metric that calculates the defect occurrence rate depending on a production cycle or process. In this example, the total number of defects per 10,000 pencils produced = 80 + 45 = 125 defects.
The DPU = Total Number of Defects ÷ Total Number of Units
= 125 ÷ 10, 000
= 0.0125
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