webtraff {EngrExpt}

Web site traffic during a marketing campaign

Description

Web site traffic during a marketing campaign

Format

A data frame with 10 observations on the following 2 variables.

weeks

weeks into the marketing campaign - an ordered factor with levels 1 to 5

traffic

web site traffic (1000's of hits per day)

References

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

Examples

str(webtraff)
dotplot(weeks ~ traffic, webtraff, type = c("p","a"),
        xlab = "Web traffic (1000's of hits per day)",
        ylab = "Weeks into the marketing campaign")