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 274 trials, the touch therapists were correct 119 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. A. Upper H 0 : pnot equals 0.5 Upper H 1 : pequals 0.5 B. Upper H 0 : pequals 0.5 Upper H 1 : pless than 0.5 C. Upper H 0 : pequals 0.5 Upper H 1 : pnot equals 0.5 D. Upper H 0 : pequals 0.5 Upper H 1 : pgreater than 0.5
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 274 trials, the touch therapists were correct 119 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. A. Upper H 0 : pnot equals 0.5 Upper H 1 : pequals 0.5 B. Upper H 0 : pequals 0.5 Upper H 1 : pless than 0.5 C. Upper H 0 : pequals 0.5 Upper H 1 : pnot equals 0.5 D. Upper H 0 : pequals 0.5 Upper H 1 : pgreater than 0.5
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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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
274
trials, the touch therapists were correct
119
times. Use a
0.05
Identify the null and alternative hypotheses for this test. Choose the correct answer below.
A.
Upper H 0
:
pnot equals
0.5
Upper H 1
:
pequals
0.5
B.
Upper H 0
:
pequals
0.5
Upper H 1
:
pless than
0.5
C.
Upper H 0
:
pequals
0.5
Upper H 1
:
pnot equals
0.5
D.
Upper H 0
:
pequals
0.5
Upper H 1
:
pgreater than
0.5
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