Description

Drying of silica

Format

A data frame with 30 observations on the following 3 variables.

brand

a factor with levels A B C

type

a factor with levels A B

moisture

a numeric vector

References

Peter R. Nelson, Marie Coffin and Karen A. F. Copeland (2003), Introductory Statistics for Engineering Experimentation, Elsevier. (Appendix A)

Examples