A noted psychic was tested for ESP. The psychic was

Last updated: 7/11/2022

A noted psychic was tested for ESP. The psychic was presented with 200 cards face down and asked to determine if the card was one of five symbols: a star, cross, circle, 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. Suppose you wished to see if there is evidence that the psychic is doing better than just guessing. To do this you test the hypotheses a) Ho: p = 0.20, Ha: p > 0.20. b) Ho: p > 0.20, H₂: p < 0.20. c) Ho: p > 0.20, H₂: p = 0.20. d) Ho: p = 0.20, H₂: P = 0.20.