7. We have data on 143 brown bears and we construct a model to predict weight ba

Question

7. We have data on 143 brown bears and we construct a model to predict weight based on head length and width, neck girth, length of the body, and chest girth. Partial regression output is shown below The regression equation is weight =-274-4.23 Head,L-0.51 Head.W + 7.06 Neck-G + 0.807 Length + 8.98 Chest.G Predictor Constant Head.L Head.W Neck.G Length Chest.G What are the degrees of freedom for the model? O 137 Coef -273.71 -4,231 -0.510 7.056 0.8069 8.9758 SE Coef 18.83 2.810 2.891 1.460 0.6312 0.8655 0.000 0.134 0.860 0.000 0.203 0.000 -14.53 0.18 4.83 1.28 10.37

Explanation / Answer

The degree of freedom for the model is 137.

(since the degree of freedom for multiple regression line is (n-k-1). and here,n=143 and k=5 then the degree of freedom=(143-5-1)=137).

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