| tennis {EngrExpt} | R Documentation |
Durability of tennis ball covers
A data frame with 20 observations on the following 2 variables.
typeA, B, C
and DwearPeter R. Nelson, Marie Coffin and Karen A. F. Copeland (2003), Introductory Statistics for Engineering Experimentation, Elsevier. (Appendix A)
str(tennis)