The Degrees of Freedom for the T Statistic to Test

question 39

Multiple Choice

The degrees of freedom for the t statistic to test the hypothesis about two independent samples is ________.

• A)n
• B)n - 1
• C)n₁ + n₂
• D)n₁ +n₂ - 2

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Definitions:

Colonized

The process by which one organism inhabits, takes over, or establishes control over a new area, often referring to organisms spreading into new habitats.

Neurotransmitters

Chemicals that transmit signals across a synapse from one neuron to another neuron, muscle, or gland cell.

Dopamine

A neurotransmitter in the brain that plays key roles in reward, motivation, memory, attention, and even regulating body movements.

Motivation

The reasons or drives behind an individual's actions or behaviors, often influencing how and why actions are taken.