In a completely randomized design for ANOVA, the numerator and denominator degrees of freedom are 4 and 25, respectively. The total number of observations must equal:

A) 24
B) 25
C) 29
D) 30
E) 31

Randomized Design

An experimental setup where subjects or experimental units are randomly allocated to different groups or treatments.

Degrees of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution, typically in the context of parameter estimation or hypothesis testing.

Observations

The act of systematically viewing and recording phenomena or data to gather information about the world.