Use the following to answer questions: 
-(Table: Expected Exam Scores from Studying Economics and Accounting) Look at the table Expected Exam Scores from Studying Economics and Accounting. If you studied for a total of three hours, your combined scores would be maximized by spending _____ hours studying economics.
Definitions:
Regression Models
Statistical models used to estimate the relationship between a dependent variable and one or more independent variables.
Extrapolated
The process of estimating beyond the original observation range by assuming that existing trends continue.
Multiple R
A statistic that represents the correlation between observed and predicted values of a dependent variable in a regression analysis, indicating model fit.
R Square
The ratio of the variance in the outcome variable that can be attributed to the influence of predictor variables in a regression analysis.
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Q242: Excise taxes that raise the most revenue