Suppose a Population Has a Mean of 450 and a Variance

question 23

Multiple Choice

Suppose a population has a mean of 450 and a variance of 900.If a random sample of size 100 is drawn from the population,the probability that the sample mean is between 448 and 453 is _______.

• A) 0.4972
• B) 0.6826
• C) 0.4101
• D) 0.5899
• E) 0.9878

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Definitions:

Positive Self-Concept

An individual's view of themselves that is generally positive, reflecting a belief in one’s own abilities and self-worth.

Abraham Maslow

A psychologist best known for creating Maslow's hierarchy of needs, a theory of psychological health predicated on fulfilling innate human needs.

Carl Rogers

An influential American psychologist who developed client-centered therapy and emphasized the importance of a positive self-concept.

Affiliation Motivation

A psychological concept referring to the drive to relate to people on a social basis.