Suppose Students' Ages Follow a Skewed Right Distribution with a Mean

question 22

Multiple Choice

Suppose students' ages follow a skewed right distribution with a mean of 23 years old and a standard deviation of 4 years. If we randomly sample 200 students, which of the following
Statements about the sampling distribution of the sample mean age is incorrect?

• A) The standard deviation of the sampling distribution is equal to 4 years.
• B) The mean of the sampling distribution is approximately 23 years old.
• C) The shape of the sampling distribution is approximately normal.
• D) All of the above statements are correct.

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Definitions:

Unconscious Processes

Mental activities below the level of conscious awareness that influence thoughts, feelings, and behaviors, a fundamental concept in psychoanalytic theory.

Psychodynamic Therapy

A therapeutic approach aiming to explore the psychological forces underlying emotional issues, focusing on unresolved conflicts and influences from the past.

Personality Reshaping

The process of making significant and lasting changes to an individual's personality traits and behaviors, often through psychological interventions.

Biological Therapy

Treatment that uses substances derived from living organisms to fight disease, including some types of cancer and chronic illnesses.