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 $$\text { Cigarettes Per Day } = \beta _ { 0 } + \beta _ { 1 } \text { Age } + \beta _ { 2 } \text { Family Size } + \beta _ { 3 } \text { Years of Education. }$$
The appropriate null hypothesis for this test is

A) H₀: β₀ = β₁ = β₂ = β₃ = 0.
B) H₀: β₁ = β₂ = 0.
C) H₀: β₁ = 0.
D) H₀: β₂ = 0.