An Elections Officer Wants to Model Voter Turnout $( y )$

question 120

Multiple Choice

An elections officer wants to model voter turnout $( y )$ in a precinct as a function of the type of precinct.
Consider the model relating mean voter turnout, $E ( y )$ , to precinct type:
$$\begin{array} { l l } E ( y ) = \beta _ { 0 } + \beta _ { 1 } x _ { 1 } + \beta _ { 2 } x _ { 2 } , \text { where } & x _ { 1 } = 1 \text { if urban, } 0 \text { if not } \\& x _ { 2 } = 1 \text { if suburban, } 0 \text { if not } \\& \text { (Base level = rural) }\end{array}$$
Interpret the value of $\beta _ { 2 }$ .

• A) the difference between the mean voter turnout for suburban and rural precincts
• B) the difference between the mean voter turnout for suburban and urban precincts
• C) the mean voter turnout for suburban precincts
• D) the rate of increase in voter turnout \(( y )\) for suburban precincts, i.e., the slope of the \(y - x _ { 2 }\) line

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