Question $5$

Analysis of data on all product returns is important because

All of the above.

changes in design and in customer use are often well reflected.

immediate feedback and analysis of product performance becomes available.

failure rates change with length of product usage.

Question $6$

Suppose a test procedure is performed in order to determine the value of a product measurement. What is the order of equipment type, from lowest to highest

accuracy, if NIST traceability is to be achieved?

Primary standards, ISO standards, transfer standards

Working standards, ISO standards, transfer standards, reliability standards

Primary standards, transfer standards, working standards

Working standards, transfer standards, primary standards