Which Statement Is Not True Concerning the T Distribution

question 154

Multiple Choice

Which statement is not true concerning the t distribution?

• A) The t distributions are skewed to the left.
• B) As the number of degrees of freedom increases,the t distribution approaches the normal distribution.
• C) The population variance is unknown and is estimated by the sample variance s².
• D) Compared to the normal distribution,the t distribution has more area in the tails and less in the center.

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Definitions:

Repression

Psychological defense mechanism in which the person refuses to consciously remember a threatening or unacceptable event, instead pushing those events into the unconscious mind.

Conscious Awareness

The state of being cognitively awake and aware of one's internal and external environments.

Memories

The faculty by which the mind stores and remembers information; also refers to the mental record of past experiences.

Reality Principle

A concept in psychoanalytic theory representing the ability of the mind to assess the external world and act upon it accordingly, as opposed to the pleasure principle.