Q:
Which of the following option is true for given statements about expanded uncertainty and coverage factor?
Statement 1: Last calculation is the expanded uncertainty when estimating uncertainty in measurement.
Statement 2: In metrology industry, the mostly used value of the coverage factor is 2.
Answer & Explanation
Answer: C) T, T
Explanation: In metrology industry, a typically estimate of uncertainty to 95.45% confidence and coverage factor where k=2 is used. It can vary according to requirement. Last calculation is generally the expanded uncertainty while estimating measurement uncertainty.
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