Capability measurements primarily answer which question?

Capability measurements are specifically designed to assess whether a process is able to meet the established requirements and standards consistently. This involves evaluating the process's performance against specifications or customer expectations. The primary question capability measurements answer is if a process is good enough to produce outputs that satisfy quality criteria over time.

When assessing capability, analysts often use statistical tools and metrics, such as process capability indices (Cp, Cpk), which provide insight into how well a process can produce products within specified limits. If capability measurements indicate that the process is capable, it assures stakeholders that the process can reliably meet quality standards.

Other choices focus on different aspects of process evaluation. Monitoring changes in process (the first option) relates to process control and stability rather than its capabilities. Identifying the number of errors present (the second option) is more about inspection and quality control rather than the overall capability of the process. Determining average performance (the last option) describes a broader performance assessment but does not directly inform about the capability of the process relative to its specifications.