The data used is from a statistical software Minitab; London.MPJ is the file that consists of 1519 households drawn from 1980 - 1982 British Family Expenditure Surveys. Data that is selected is only of households that have one or two children living in Greater London. The self employed and retired households have been excluded. The subset of data is obtained from a larger study.
The variables from the London.MPJ file:
The variables that are used for this regression investigation are the following: