EngrExpt (version 0.1-6)

ccthickn: Clear coat thickness

Description

With a paint is applied to a car it is applied to a specified film build (i.e. thickness). The thickness of the coating has an effect on the properties of the paint so it is important to maintain the correct film build. The final layer of paint on a car is called the clear coat; the film build of this layer was to be 65 microns.

References

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

Examples

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(...)
   })