Elementary Statistics
12th Edition
ISBN: 9780321836960
Author: Mario F. Triola
Publisher: PEARSON
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Chapter 5.4, Problem 14BSC
a.
To determine
The mean and standard deviation for the number of correct responses in the group of 280 trials.
b.
To determine
To find: Whether 123 times in the 280 trials is unusually low or high number of correct responses.
To suggest: The result about the ability of touch from the obtained results.
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In a science fair project, Emily conducted an 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 Emily's hand without seeing it and without touching it. Among
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In a science fair project, Emily conducted an 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 Emily's hand without seeing it and without touching it. Among 350 trials, the touch therapists were correct 167 times. Complete parts (a) through (d).
Chapter 5 Solutions
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