If We Are Testing the Difference Between the Means of Two

question 44

Multiple Choice

If we are testing the difference between the means of two normally distributed independent populations with samples of n₁ = 10, n₂ = 10, the degrees of freedom for the t statistic is ________.

• A) 19
• B) 18
• C) 9
• D) 8
• E) 20

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Definitions:

Physiological Arousal

The bodily responses to stimuli, such as increased heart rate or adrenaline release, indicating excitement or stress.

Emotional Arousal

Refers to the physiological and psychological state of being awoken or stimulated to have intense emotions or feelings.

Blood Sugar Levels

The concentration of glucose present in the blood, important for maintaining energy levels.

Two-factor Theory

in emotion, suggests that emotions are based on physiological arousal and cognitive labeling of that arousal.