A MINITAB printout is provided from fitting the multiple regression model to U.S. crime data for the 50 states (excluding Washington, D.C.), on y = violent crime rate, x1 = poverty rate, and
x2 = percent living in urban areas.
a. Predict the violent crime rate for Massachusetts, which has violent crime rate = 476, poverty rate = 10.2%and urbanization = 92.1%Find the residual, and interpret.
b) Interpret the effects of the predictors by showing the prediction equation relating y and x1 for states with
(i) x2 = 0 and
(ii) x2 = 100. Interpret.
Regression of violent crime rate on poverty rate and urbanization

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Predictor Constant poverty urbanization Coef SE Coef T -270.7 121.1 -2.23 0.030 28.334 7.249 3.91 0.000 5.416 1.035 5.23 0.000