Final answer:
The % R & R is used to measure the variation in a measurement system. A % R & R of 28% indicates that the measurement system is marginally capable. The measurements obtained from the system may not be consistent and accurate enough for certain applications.
Step-by-step explanation:
The % R & R, or % Repeatability and Reproducibility, is used to measure the variation in a measurement system. It is a common metric used in quality control to evaluate the reliability and accuracy of a measurement system. If the % R & R is computed to be 28%, it means that the measurement system has a high level of variation, indicating that it is marginally capable. This means that the measurements obtained from the system may not be consistent and accurate enough for certain applications.