ex0525 {Sleuth3} | R Documentation |
IQ and Future Income
Description
These data are annual incomes in 2005 of a random sample of 2,584 Americans who were selected for the National Longitudinal Survey of Youth in 1979 and who had paying jobs in 2005. The data set also includes a code for the number of years of education that each individual had completed by 2006: <12, 12, 13–15, 16, and >16. How strong is the evidence that at least one of the five population distributions (corresponding to the different years of education) is different from the others? By how many dollars or by what percent does the mean or median for each of the last four categories exceed that of the next lowest category?
Usage
ex0525
Format
A data frame with 2,584 observations on the following 3 variables.
- Subject
subject identification number
- Educ
a factor for years of education category with levels
"<12"
,"12"
,"13-15"
,"16"
and">16"
- Income2005
Annual income in 2005, in U.S. dollars
Source
Ramsey, F.L. and Schafer, D.W. (2013). The Statistical Sleuth: A Course in Methods of Data Analysis (3rd ed), Cengage Learning.
References
National Longitudinal Survey of Youth, U.S. Bureau of Labor Statistics, https://www.bls.gov/nls/home.htm (May 8, 2008).
See Also
ex0222
, ex0330
, ex0331
,
ex0524
, ex0828
, ex0923
,
ex1033
, ex1223
Examples
str(ex0525)