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Use software with the "2005 statewide brime" data file at the text web site, with murder rate (number of murders per 100,000 people) as the respones variable and with perxent of high sxhool graduates and the poverty rate ( perxentage of the population with income below the poverty level) as explanatory variable.

(a) Construct the partial regression plot. Interpret. Do you see any unusual observations?

(b) Report the prediction equation. Explain how to interpret the estimated coefficients.

(c) Redo the analyses after deleting the D.C. observation on the predictecd effect of poverty rate. What does this tell you about how influential outliers can be?

 

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