Report a p-value for the following hypothesis test. Without looking, in 1 out of 2 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)

Report a p-value for the following hypothesis test. Without looking, in 1 out of 2 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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Concept explainers

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.

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Question

Report a p-value for the following hypothesis test.
Without looking, in 1 out of 2 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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