A plant manager notices a high variation in output quality from 8 machines within one production cycle. He collects the average defects per total output for each machine per hour. As a variable, output defects is:

Question

Quizplus · Accepted Answer

As a variable, output defects is critical to quality (CTQ).
Key Takeaway: In quality control, a business manager must collect relevant data and calculate a sample statistic in order to compare subgroups. In this example, the 8 machines are subgroups while the defects per total output provides a variable that is critical to quality (or CTQ). This comparison allows the manager to address the variations in quality and make recommendations such as replacing the faulty machines.

A Plant Manager Notices a High Variation in Output Quality