Which of the following correctly describes degrees of freedom?
A) They are equal to the difference between the point estimate located at the interval center and either the lower or upper limit of the interval between which the parameter is "free to move."
B) They determine the shape of the t-distribution, and refer to the number of independent squared deviations inthat are available for estimatingand, in this sense, can be "freely chosen."
C) They equal sample size minus 2 in the case of a single sample.
D) None of these.
E) All of these.

Question

Quizplus · Accepted Answer

Degrees of freedom refer to the number of independent squared deviations that are available for estimating a parameter, and in this sense, can be "freely chosen." They are used to determine the shape of the t-distribution. The other options provide incorrect or incomplete descriptions of the concept of degrees of freedom.

Which of the Following Correctly Describes Degrees of Freedom