Mathematics, 10.04.2020 16:31 zoeyanai1

A noted psychic was tested for ESP. The psychic was presented with 400 cards face down and asked to determine if each card was marked with one of four different symbols. The psychic was correct in 120 cases. Let p represent the probability that the psychic correctly identifies the symbol on the card in a random trial. Suppose you wish to see if there is evidence that the psychic was doing better than just guessing. Perform a hypothesis test with a 0.05 level of significance to test if p is greater than 25%.

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A noted psychic was tested for ESP. The psychic was presented with 400 cards face down and asked to...

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Mathematics, 19.05.2020 13:12

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