Suppose π¦ = π½0 + π½1
π₯1 + π½2
π₯2 + π is linear regression
model of weekly food expenditure (y) on weekly
household income (x1
) and household size (x2
). Suppose
also that the coefficients π½0
, π½1
and π½2
are to be estimated
using the method of Least Squares (OLS) estimation.