sales: Sales versus capital expenditure

In EngrExpt: Data sets from "Introductory Statistics for Engineering Experimentation"

Description

Sales versus capital expenditure over 48 months

Format

A data frame with 48 observations (ordered by month) on the following 3 variables.

capital

a numeric vector

pindex

a numeric vector

sales

a numeric vector

References

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

Examples

str(sales)

Example output

Loading required package: lattice
'data.frame':	48 obs. of  3 variables:
 $ capital: num  78.9 79.3 79.9 80.3 80.5 ...
 $ pindex : num  105 106 108 109 110 ...
 $ sales  : int  18842 16859 19001 18905 17450 20940 18469 19094 19325 18396 ...

EngrExpt documentation built on May 1, 2019, 9:15 p.m.