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A criminologist is interested in the effects of unemployment and policing on murder and has run...

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Question

Basic Math

A criminologist is interested in the effects of unemployment andpolicing on murder and has run the following multipleregression:

Summary Output

Regression Statistics

Multiple R

0.90303

R Square

0.815462

Adjusted R Square

0.762737

Standard Error

5.11041

Observations

10

Coefficients

Standard Error

t Statistic

P-value

Intercept

–23.26309588

7.075518018

–3.28783

0.013342

Unemployment rate

10.27754326

2.172859937

4.729961

0.002133

Police per 100,000

–0.046737101

0.023409765

–1.99648

0.086065

a. What is the Y-intercept? Interpret your results.

b. Which variables are significant at the 0.05 level?

c. What is the predicted homicide rate for a city with anunemployment rate of 5% and 250 police officers per 100,000population?

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