What Formula Is Used to Calculate the Degrees of Freedom

question 103

Multiple Choice

What formula is used to calculate the degrees of freedom for the t test for comparing two population means when the population variances are unknown and unequal?

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Definitions:

Biology

The systematic examination of living entities and their life processes, covering aspects such as their anatomy, physiology, development, evolutionary history, distribution, and classification.

Evolution

The process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.

Natural Selection

An evolutionary biology mechanism where creatures that are more suited to their surroundings are more likely to live and have a higher number of descendants.

Behavior

The actions or reactions of a person or animal in response to external or internal stimuli.