A First-Order No-Interaction Model Has the Form $\hat { Y } = 5 + 3 x _ { 1 } + 2 x _ { 2 }$

Multiple Choice

A first-order no-interaction model has the form $\hat { Y } = 5 + 3 x _ { 1 } + 2 x _ { 2 }$ . As $x _ { 1 }$ increases by 1-unit, while holding $x _ { 2 }$ fixed, then y will be expected to

A) increase by 10
B) increase by 5
C) increase by 3
D) decrease by 3
E) decrease by 6