Answered: A noted psychic was tested for ESP. The…

Name: A noted psychic was tested for ESP. The psychic was presented with 200
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Description: A noted psychic was tested for ESP. The psychic was presented with 200 cards face down and askedto determine if the card was one of five symbols: a star, cross, circle, square, or three wavy lines. Thepsychic was correct in 50 cases. To determine if

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A noted psychic was tested for ESP. The psychic was presented with 200 cards face down and askedto determine if the card was one of five symbols: a star, cross, circle, square, or three wavy lines. Thepsychic was correct in 50 cases. To determine if he has ESP, we want to know if his success rate is betterthan someone who just guesses. That is, we test the hypotheses H0: p = 0.20, Ha: p > 0.20, where prepresent the proportion of cards for which the psychic correctly identifies the symbol in random trials.Assume the 200 trials described above can be treated as an SRS from the population of all guesses thepsychic would make in his lifetime. The P-value of this test is
A) between .10 and .05.
B) between .05 and .025.
C) between .025 and .01.
D) between .01 and .001.
E) below .001.

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