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A regression model involved 5 independent variables and 126 observations. The critical value of t for testing the significance of each of the independent variable's

A regression model involved 5 independent variables and 126 observations. The critical value of t for testing the significance of each of the independent variable's coefficients will have _____.

a. 125 degrees of freedom

b. 4 degrees of freedom

c. 130 degrees of freedom

d. 131 degrees of freedom

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