Suppose You Estimate the Sample Regression Function You Should Conclude That the Marginal Effect of Unemployment on }

Multiple Choice

Suppose you estimate the sample regression function $$\begin{array} { l } viol\widehat {ent~c}rime _ { i } = 7.23 - 4.87 \cdot \text { Suburb } _ { i } + 6.11 \cdot \text { Unemployment } _ { i } \\- 1.30 \cdot ( \text { Suburb* Unemployment } ) _ { i } \\\end{array}$$
You should conclude that the marginal effect of unemployment on violent crime in suburbs is

A) -4.87.
B) 6.11.
C) -1.30.
D) 4.81.