Martina Justice the head of the state Bureau of Criminal
Martina Justice, the head of the state Bureau of Criminal Justice, feels that she could significantly reduce the crime rate in the state if the state doubled expenditures for police. To support her argument, Martina runs a regression of state crime rates (Y) (in crimes per 100,000 populations) on per capita police expenditures (in dollars). She finds the following:
 = 2,475 + 5.1X Sy|x = 425 sb = 1.3 r2 = .63 n = 50
What has Martina found? Interpret the slope, intercept, and r2.
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