A Noted Psychic Was Tested for Extrasensory Perception

question 87

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.What do we know about the value of the P-value for the hypothesis test? (Note: Use the large-sample z statistic. )

• A)P-value < 0.001
• B)0.001 < P-value < 0.01
• C)0.01 < P-value < 0.05
• D)0.05 < P-value < 0.10

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Trial Close

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