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A multiple regression model using 200 data points (with three independent variables) has how many degrees of freedom for testing the statistical significance of individual slope coefficients?
196
199
198

Respuesta :

Answer:

196

Step-by-step explanation:

Formula of degree of freedom for simple regression = n-2

Formula of degree of freedom for multiple regression = n-k-1

We are given the case of multiple regression and there are three independent variables.

So, k = 3

n = 200

So, Degree of freedom for multiple regression =[tex]n-k-1[/tex]

                                                                              = [tex]200-3-1[/tex]

                                                                              = [tex]196[/tex]

So, Option A is true .

Hence degrees of freedom for testing the statistical significance of individual slope coefficients is 196

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