A 9-year-old girl did a science fair experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under her hand without seeing it and without touching it. Among 261 trials, the touch therapists were correct 111 times. Use a 0.05 significance level to test the claim that touch therapists use a method equivalent to random guesses. Do the results suggest that touch therapists are effective? .....

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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performed > (worse than, similarly to, better than) random guesses

, so they > (do not appear, appear) effective.

A 9-year-old girl did a science fair experiment in which she tested professional touch therapists to see if they could sense her energy field. She
flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand
just under her hand without seeing it and without touching it. Among 261 trials, the touch therapists were correct 111 times. Use a 0.05 significance
level to test the claim that touch therapists use a method equivalent to random guesses. Do the results suggest that touch therapists are effective?
Identify the null and alternative hypotheses for this test. Choose the correct answer below.
О А. Но: р-0.5
В. Но: р3D0.5
H1:p#0.5
H1:p<0.5
С. Но: р3D0.5
D. Ho: p#0.5
H1:p>0.5
H1:p= 0.5
Identify the test statistic for this hypothesis test.
The test statistic for this hypothesis test is
(Round to two decimal places as needed.)
Identify the P-value for this hypothesis test.
The P-value for this hypothesis test is
(Round to three decimal places as needed.)
Transcribed Image Text:A 9-year-old girl did a science fair experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under her hand without seeing it and without touching it. Among 261 trials, the touch therapists were correct 111 times. Use a 0.05 significance level to test the claim that touch therapists use a method equivalent to random guesses. Do the results suggest that touch therapists are effective? Identify the null and alternative hypotheses for this test. Choose the correct answer below. О А. Но: р-0.5 В. Но: р3D0.5 H1:p#0.5 H1:p<0.5 С. Но: р3D0.5 D. Ho: p#0.5 H1:p>0.5 H1:p= 0.5 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is (Round to two decimal places as needed.) Identify the P-value for this hypothesis test. The P-value for this hypothesis test is (Round to three decimal places as needed.)
A 9-year-old girl did a science fair experiment in which she tested professional touch therapists to see if they could sense her energy field. She
flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand
just under her hand without seeing it and without touching it. Among 261 trials, the touch therapists were correct 111 times. Use a 0.05 significance
level to test the claim that touch therapists use a method equivalent to random guesses. Do the results suggest that touch therapists are effective?
О с. Но: р30.5
D. Ho: p+0.5
H1: p>0.5
H1: p= 0.5
Identify the test statistic for this hypothesis test.
The test statistic for this hypothesis test is
(Round to two decimal places as needed.)
Identify the P-value for this hypothesis test.
The P-value for this hypothesis test is
(Round to three decimal places as needed.)
Identify the conclusion for this hypothesis test.
O A. Fail to reject Ho. There is not sufficient evidence to warrant rejection of the claim that touch therapists use a method equivalent to random
guesses.
B. Reject Ho. There is sufficient evidence to warrant rejection of the claim that touch therapists use a method equivalent to random guesses.
O c. Reject Ho. There is not sufficient evidence to warrant rejection of the claim that touch therapists use a method equ
lent to random
guesses.
O D. Fail to reject Ho. There is sufficient evidence to warrant rejection of the claim that touch therapists use a method equivalent to random
guesses.
Do the results suggest that touch therapists are effective?
The results suggest that the touch therapists performed
random guesses, so they
to be effective.
Transcribed Image Text:A 9-year-old girl did a science fair experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under her hand without seeing it and without touching it. Among 261 trials, the touch therapists were correct 111 times. Use a 0.05 significance level to test the claim that touch therapists use a method equivalent to random guesses. Do the results suggest that touch therapists are effective? О с. Но: р30.5 D. Ho: p+0.5 H1: p>0.5 H1: p= 0.5 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is (Round to two decimal places as needed.) Identify the P-value for this hypothesis test. The P-value for this hypothesis test is (Round to three decimal places as needed.) Identify the conclusion for this hypothesis test. O A. Fail to reject Ho. There is not sufficient evidence to warrant rejection of the claim that touch therapists use a method equivalent to random guesses. B. Reject Ho. There is sufficient evidence to warrant rejection of the claim that touch therapists use a method equivalent to random guesses. O c. Reject Ho. There is not sufficient evidence to warrant rejection of the claim that touch therapists use a method equ lent to random guesses. O D. Fail to reject Ho. There is sufficient evidence to warrant rejection of the claim that touch therapists use a method equivalent to random guesses. Do the results suggest that touch therapists are effective? The results suggest that the touch therapists performed random guesses, so they to be effective.
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