If We Are Testing for the Difference Between the Means

question 139

Multiple Choice

If we are testing for the difference between the means of 2 related populations with samples of n1= 20 and n2 = 20, the number of degrees of freedom is equal to

• A)39.
• B)38.
• C)19.
• D)18.

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Definitions:

Prosopagnosia

A neurological condition characterized by the inability to recognize faces, also known as face blindness.

Visual-form Agnosia

A neurological condition where a person can see objects but cannot recognize their shape, leading to an inability to identify the objects based on their forms.

Glaucoma

Glaucoma is a group of eye conditions that damage the optic nerve, often associated with abnormally high pressure in the eye and can lead to loss of vision if not treated.

Protanopia

A type of color blindness in which there is a difficulty in distinguishing between red and green colors due to the absence or malfunctioning of the red cones in the eye.