Water content of antifreeze data

Water content (in ppm) of batches of antifreeze.

data(antifreeze)

Format

A data frame with observations on 34 successive batches of antifreeze:

water

water content (in ppm)

References

Wetherill, G.B. and Brown, D.W. (1991) Statistical Process Control. New York: Chapman & Hall, p. 120

Examples

data(antifreeze)
describe(antifreeze)
#>            Obs Mean StdDev  Min Median Max
#> antifreeze  34 2.57   0.22 2.17   2.55   3