A digital multimeter reads a steady voltage six times (V): .
PHYSICS · Multi-part · Fermi University Physics · Scientific Practice & Experimental Methods · Uncertainty in measurement · Uncertainty in measurement
Measurement and Method, Ch Type A, Type B and the uncertainty budget
Problem
A digital multimeter reads a steady voltage six times (V): 5.02,5.04,5.03,5.05,5.03,5.04.
((a)) Evaluate the Type A standard uncertainty of the mean voltage, with its degrees of freedom.
((b)) The multimeter's specification states an accuracy of ±0.5 per cent of reading, with nothing favouring the middle of that interval. Using the mean voltage from part (a), evaluate the Type B standard uncertainty this specification contributes to a single reading, naming the distribution assumed.