Description Usage Format Source References
An experiment that investigates the washing power of a solution as measured by the reflectance of pieces of cotton cloth after washing. (Chapter 7, Table 7.24)
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A data frame with 27 rows and 4 variables:
sodium carbonate - 3 levels (0, 0.05, or 0.1%)
detergent - 3 levels (0.05, 0.1, or 0.2%)
sodium carboxymethyl cellulose - 3 levels (0, 0.025, or 0.05%)
reflectance
http://www.wright.edu/~dan.voss/bookdata/data.html
Dean, A. and Voss, D. (1999). Design and Analysis of Experiments. New York, Springer.
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