Six Sigma Black Belt Certified Practice Exam

In the context of quality control, the term 'Cp' refers to:

1. Process capability index

2. Cost of production

3. Customer satisfaction percentage

4. Corrective planning

The correct answer is: Process capability index

The term 'Cp' stands for Process Capability Index. This measure is crucial in quality control as it evaluates how well a given process can produce output within specified limits. Specifically, Cp compares the width of the process variation (defined by the six sigma level) to the width of the specification limits. A higher Cp value indicates that a process is more capable of producing output that meets quality requirements, as it demonstrates lower variability relative to the allowable limits. This statistical tool is essential in understanding the potential performance of a process before any improvements or adjustments are made. The other options do not accurately define what Cp represents in the context of quality control. For instance, the cost of production relates to the expenses incurred in manufacturing processes but does not provide insight into process capability. Customer satisfaction percentage measures how well a company's products or services meet customer expectations but is not related to the technical evaluation of process capability. Corrective planning is associated with responses to identified issues, but again, it is not connected to the statistical understanding encompassed by Cp. Therefore, the correct association of Cp with the process capability index is essential for quality management and improvement initiatives.