We Have Calculated a Confidence Interval Based on a Sample

question 479

Multiple Choice

We have calculated a confidence interval based on a sample of n = 180. Now we want to get a better
Estimate with a margin of error only one third as large. We need a new sample with n at least…

• A) 60
• B) 540
• C) 312
• D) 1620
• E) 20

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Definitions:

Mental Retardation

An outdated and insensitive term once used to describe a significantly below-average general intellectual functioning and adaptive behavior, now referred to as intellectual disability.

Borderline

Often used in the context of borderline personality disorder, referring to a condition characterized by difficulty in regulating emotions, unstable relationships, and self-image issues.

Millon Clinical Multiaxial Inventory

A psychological assessment tool designed to diagnose and plan treatment for a variety of psychological disorders, created by Theodore Millon.

Projective Personality

A psychological assessment technique in which subjects interpret ambiguous stimuli, revealing hidden emotions and internal conflicts.