Seven specimens were sent to 6 laboratories in 3 separate batches and each analysed for Analyte. Each analysis was duplicated.
This data frame contains the following columns:
L1,
L2, ...,
L6.
S1,
S2, ...,
S6.
B1,
B2,
B3 (nested within
Spc/Lab),
Analytical Methods Committee (1987) Recommendations for the conduct and interpretation of co-operative trials, The Analyst 112, 679-686.