Which of the Following Is NOT True About the Student's

question 109

Multiple Choice

Which of the following is NOT true about the Student's t distribution?

• A) It is bell shaped and symmetrical.
• B) It has more area in the tails and less in the centre than does the normal distribution.
• C) It is used to construct confidence intervals for the population mean when the population standard deviation is known.
• D) As the number of degrees of freedom increases, the t distribution approaches the normal distribution.

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Definitions:

Manic Episodes

Periods of abnormally elevated mood and high energy, often characteristic of bipolar disorder.

Negative Symptoms

Features primarily associated with schizophrenia and similar disorders, characterized by a lack or decrease in normal functions, such as motivation, emotional expression, or social engagement.

Social Withdrawal

The act of pulling away from others and choosing to spend time alone, avoiding social interactions.

Flat Affect

A severe reduction in emotional expressiveness, often characterized by a lack of facial expressions or intonation in speech.