Suppose You Wish to Know Whether Age and Family Size

Multiple Choice

Suppose you wish to know whether Age and Family Size are jointly significant in the model $\text { Cigarettes Per Day } = \beta _ { 0 } + \beta _ { 1 } \text { Age } + \beta _ { 2 } \text { Family Size } + \beta _ { 3 } \text { Years of Education } + \varepsilon \text {. }$
The Restricted Model for testing the joint significance of the two variables?

A) $\text { Cigarettes Per Day } = \beta _ { 0 } + \beta _ { 1 } \text { Age } + \beta _ { 2 } \text { Family Size } + \varepsilon ^ { * } \text {. }$

B) $\text { Cigarettes Per Day } = \beta _ { 0 } + \beta _ { 1 } \text { Age } + \beta _ { 2 } \text { Years of Education } + \varepsilon ^ { * }$

C) $\text { Cigarettes Per Day } = \beta _ { 0 } + \beta _ { 1 } \text { Years of Education } + \varepsilon ^ { * } \text {. }$

D) None of the above.