When she was 9 years of age, a 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 sh asked the therapists to identify the selected hand by placing their hand just under her hand without seeing it and without touching it. Among 247 trials, the touch therapists were correct 105 times. Use a 0.10 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 test statistic. Z= -2.35 (Round to two decimal places as needed.) Identify the P-value. P-value= ...

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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When she was 9 years of age, a 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 247 trials, the touch therapists were correct 105 times. Use a 0.10 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 test statistic.
Z= -2.35
(Round to two decimal places as needed.)
Identify the P-value.
P-value=
(Round to three decimal places as needed.)
...
Transcribed Image Text:K When she was 9 years of age, a 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 247 trials, the touch therapists were correct 105 times. Use a 0.10 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 test statistic. Z= -2.35 (Round to two decimal places as needed.) Identify the P-value. P-value= (Round to three decimal places as needed.) ...
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