A Noted Psychic Was Tested for Extrasensory Perception

question 96

Multiple Choice

A noted psychic was tested for extrasensory perception.The psychic was presented with 200 cards face down and asked to determine if each card were one of five symbols: a star,a cross,a circle,a square,or three wavy lines.The psychic was correct in 50 cases.Let p represent the probability that the psychic correctly identifies the symbol on the card in a random trial.Assume the 200 trials can be treated as a simple random sample from the population of all guesses the psychic would make in his lifetime.Based on the results of the test,what is a 95% confidence interval for p?

• A)0.25 ± 0.004
• B)0.25 ± 0.05
• C)0.25 ± 0.055
• D)0.25 ± 0.060

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Definitions:

Guilty Knowledge Test

A psychological assessment that measures physiological responses to recognize familiarity with an event or object.

Two-Factor Theories

Psychological theories that propose two distinct factors contribute to the emotional and psychological experience, often used in contexts like motivation and emotion.

James-Lange Theory

A theory proposing that emotions result from physical reactions to stimuli before they are experienced.

Body's Arousal

The state of being physiologically alert, awake, and attentive, often as a response to external stimuli or excitement.