The number of degrees of freedom (df) is the number of experimental data that have contributed to the test statistic.

Question

Quizplus · Accepted Answer

The number of degrees of freedom (df) is actually the number of values in the final calculation of a statistic that are free to vary. It is not directly about the number of experimental data points, but rather about the constraints applied to those data points during statistical analysis.

The Number of Degrees of Freedom (Df) Is the Number