Co-operative Trial in Analytical Chemistry

Description

Seven specimens were sent to 6 laboratories in 3 separate batches and each analysed for Analyte. Each analysis was duplicated.

Usage

data(coop)

Format

This data frame contains the following columns:

Lab

Laboratory, L1, L2, ..., L6.

Spc

Specimen, S1, S2, ..., S6.

Bat

Batch, B1, B2, B3 (nested within Spc/Lab),

Conc

Concentration of Analyte in g/kg.

Source

Analytical Methods Committee (1987) Recommendations for the conduct and interpretation of co-operative trials, The Analyst 112, 679–686.

References

Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.

See Also

chem, abbey.