Description Format Details References Examples
Appearance of panels after exposure to weather
A data frame with 36 observations on the following 2 variables.
form
formulation of paint - a factor with levels
A
, B
and C
rating
appearance rating
One way to test the durability of a new auto paint formulation is to hang coated test panels outside and expose them to the elements. After some time has passed the appearance of the panels are rated. If their appearance is poor then that formulation is not desirable.
Peter R. Nelson, Marie Coffin and Karen A. F. Copeland (2003), Introductory Statistics for Engineering Experimentation, Elsevier. (Appendix A)
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