Clear coat thickness
Measurements of film build from 40 test panels sprayed in a pilot plant spray booth to study paint equipment set-up. Target film build was 65 microns.
A data frame with 40 observations on the following variable.
thicknessclear coat thickness (microns)
Cars are coated (i.e., painted) in layers. The “film build” (i.e. thickness) of each layer of the coating has an effect on the properties of the paint (performance and appearance) so it is important to maintain the correct film builds. The final layer of paint on a car is called the clear coat; the film build of this layer was to be 65 microns.
Peter R. Nelson, Marie Coffin and Karen A. F. Copeland (2003), Introductory Statistics for Engineering Experimentation, Elsevier. (Appendix A)
str(ccthickn)
densityplot(~ thickness, ccthickn, xlab = "Clear coat thickness (microns)")
qqmath(~ thickness, ccthickn, aspect = 1,
ylab = "Clear coat thickness (microns)",
xlab = "Standard normal quantiles",
type = c("g","p"),
panel=function(...)
{
panel.qqmathline(..., alpha = 0.5, lty = 2)
panel.qqmath(...)
})Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.