An economist for the federal government is attempting to produce a

An economist for the federal government is attempting to produce a better measure of poverty than is currently in use. To help acquire information, she recorded the annual household income (in $1,000s) and the amount of money spent on food during one week for a random sample of households. Data are provided in file Xr16-15 on the student CD.

a) Determine the regression expression.
b) Interpret the coefficients.