Workbook [for] Statistics for business and economics, 9th ed. - Anderson, David R., 1941-; Anderson, David R.; Sweeney, Dennis J., 1944-; Williams, Thomas Arthur (Cincinnati ; Toronto : SouthWestern College Pub., 2005)
All age.
Keywords: Commercial statistics -- Methodology -- Problems, exercises, etc; Economics -- Statistical methods -- Problems, exercises, etc; Statistics -- Problems, exercises, etc