Without looking, in 1 out of 3 tries, Tony correctly identifies a picture as one of 5 shapes: circle, square, triangle, wave, or star. Does this sample provide sufficient evidence that Tony has ESP (extra-sensory perception)? In other words, does this sample provide sufficient evidence that in the long run Tony would get a higher percentage right than the 20% rate of a person who is just guessing? Test   Ho: p = 0.2. Tony is just guessing. Versus   Ha: p > 0.2. Tony has ESP. (Write your answer as a decimal).

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Author:Amos Gilat
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Report a p-value for the following hypothesis test.

Without looking, in 1 out of 3 tries, Tony correctly identifies a picture as one of 5 shapes: circle, square, triangle, wave, or star. Does this sample provide sufficient evidence that Tony has ESP (extra-sensory perception)? In other words, does this sample provide sufficient evidence that in the long run Tony would get a higher percentage right than the 20% rate of a person who is just guessing?

Test   Ho: p = 0.2. Tony is just guessing.
Versus   Ha: p > 0.2. Tony has ESP.

(Write your answer as a decimal).

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