Interlaboratory consensus building challenge.

The manuscript is about an interlaboratory comparison which involved eleven metrology institutes. It comprises four tasks: i) deriving a consensus value from these results; ii) evaluating the associated standard uncertainty; iii) producing a coverage interval that, with 95\% confidence, is believed to include the true value of which the consensus value is an estimate; iv) suggesting how the measurement result from NIST may be compared with the consensus value.