Determine the Sample Size That Is Required to Estimate a Population

question 17

Multiple Choice

Determine the sample size that is required to estimate a population mean to within 0.4 units with a 99% confidence when the population standard deviation is 1.75.

• A) 172
• B) 127
• C) 217
• D) 61
• E) Over 500

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Definitions:

Oedipus Complex

A psychoanalytic theory proposed by Freud, suggesting an unconscious desire of a child, particularly a male, to possess the parent of the opposite sex and the exclusion of the same-sex parent.

Electra Complex

A psychoanalytic term referring to a girl's psychosexual competition with her mother for possession of her father.

Phallic Stage

A phase in Freudian psychosexual development during which a child's focus of libido is concentrated in the genital area.

Defense Mechanisms

Unconscious psychological strategies used to cope with reality and maintain self-image by reducing feelings of anxiety, guilt, or conflicts.