What does a basic sampling plan help determine in verification?

• A. Whether the instrument meets specifications within a subset of checks.
• B. The exact value of every measurement.
• C. The worst-case scenario for all measurements.
• D. The speed of data logging.

Answer: (A)

A basic sampling plan focuses on deciding whether the instrument meets the required specifications based on a representative subset of measurements. Because testing every possible measurement is often impractical, you define how many samples to check and what results count as “acceptable.” If the sample results meet the criteria, you conclude the instrument is within spec for its intended use; if not, it signals passing or failing status without recording every individual value. This approach provides a reliable decision with less effort than checking everything. The plan does not aim to give the exact value of every measurement, nor does it guarantee the worst-case across all measurements, and it isn’t about the speed of data logging.