Asked by Alejandro Otón García on Jul 13, 2024

verifed

Verified

In order to test for the significance of a regression model involving 3 independent variables and 47 observations, the numerator and denominator degrees of freedom (respectively) for the critical value of F are

A) 47 and 3.
B) 3 and 47.
C) 2 and 43.
D) 3 and 43.

Degrees of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution.

Significance

A measure of how likely it is that an obtained result could have occurred by chance.

Independent Variables

Variables in an experiment or model that are manipulated or controlled to test their effects on dependent variables.

  • Comprehending the significance testing processes within the context of regression models.
verifed

Verified Answer

SS
Sherin SebastianJul 19, 2024
Final Answer :
D
Explanation :
For a regression model with k independent variables and n observations, the numerator degrees of freedom for the critical value of F is k and the denominator degrees of freedom is n-k-1. Therefore, for this model, the numerator degrees of freedom is 3 and the denominator degrees of freedom is 47-3-1 = 43. Thus, the best choice is D.