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An ESP experiment is done in which a participant guesses which of 4 cards the researcher has randomly picked, where each card is equally likely. This is repeated for 200 trials. The null hypothesis is that the subject is guessing, while the alternative is that the subject has ESP and can guess at higher than the chance rate.
-What is the correct statement of the null hypothesis that the person does not have ESP?

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The null hypothesis for a test of ESP in this context posits that the participant's guesses are purely by chance, which means they would correctly guess the card 1 out of 4 times, on average. Therefore, the probability of a correct guess under the null hypothesis is 1/4 or 25%.

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