Question

Topic: Student Questions

Fit A Regression Line In Business Forecasting

Posted by Anonymous on 2/23/2009 at 5:55 AM ET 125 Points
I have 2 time series- crime rate and average prison sentence per 1000 000 people according to years(1960, 1965, 1970...-till 1990) -f.ex. in 1960-crim.rate=14.3, prison sentence=18.4, in 1965 .cr=18.2, pr.sent=11.6..so on;I tried to fit a regression line, but I always receive b=slope negative in equation y=a+bx , that i doubt it corecctiness , Could u tell me the reason? I write crime rate as X, and pr.sentence-as Y-as dependent variable, am I corecct?

Thanks in Advance!!!
Natia
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RESPONSES

  • Posted by wnelson on 2/23/2009 at 8:58 AM Accepted
    Interpretation of your results, given a negative slope coefficient, would indicate that when prison sentences are low, the crime rate is high. This could make sense - think about it. If the consequences for crime are high, then the crime rate goes down. When the consequences are low, the crime rate is high.

    Does that make sense to you?

    wayde
  • Posted on 2/24/2009 at 2:44 AM Author
    Thanks to Wnelson and Tinker for answering, your responses were really usuful for me, I will use them in my Final Exam paper in Business Forecasting
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