Consider the following model that relates the percentage of a household's budget spest co food SFOOD to total expenditure TOTEXP, age of the housebold head AGE, and the number of cheldea ia the houschold NK$.$

$\{\begin{array}{ccc}\text{:}& \text{S}\text{F}\text{O}\text{O}\text{D}-{}_1+{}_{2}ln(\text{T}\text{O}\text{T}\text{E}\text{X}\text{P})+{}_{2}NK-{}_2\text{A}\text{G}\text{E}& +u\end{array}$

This model was estimated using $1200$ observations. An incomplete version of this output is provided.

Dependent Variable: SFOOD

Included observations: $1200$

$\backslash$table$[[\backslash$table$[[$Variable$],[q,$