Data for Exercises 2.12 and 2.29
A data frame/tibble with 24 observations on four variables
a numeric vector of years
average hourly wage for salaried employees (in dollars)
percent increase in hourly wage over previous year
percent inflation rate
Bureau of Labor Statistics.
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.