9. 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 310 trials, the touch therapists were correct 140 times. Complete parts (a) through (d). a. Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guesses | (Type an integer or a decimal. Do not round.) b. Using Emily's sample results, what is the best point estimate of the therapists' success rate? (Round to three decimal places as needed.) c. Using Emily's sample results, construct a 95% confidence interval estimate of the proportion o correct responses made by touch therapists.
9. 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 310 trials, the touch therapists were correct 140 times. Complete parts (a) through (d). a. Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guesses | (Type an integer or a decimal. Do not round.) b. Using Emily's sample results, what is the best point estimate of the therapists' success rate? (Round to three decimal places as needed.) c. Using Emily's sample results, construct a 95% confidence interval estimate of the proportion o correct responses made by touch therapists.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:9. 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 310 trials, the
touch therapists were correct 140 times. Complete parts (a) through (d).
a. Given that Emily used a coin toss to select either her right hand or her left hand, what
proportion of correct responses would be expected if the touch therapists made random guesses?
(Type an integer or a decimal. Do not round.)
b. Using Emily's sample results, what is the best point estimate of the therapists' success rate?
(Round to three decimal places as needed.)
c. Using Emily's sample results, construct a 95% confidence interval estimate of the proportion of
correct responses made by touch therapists.
<p<
(Round to three decimal places as needed.)
d. What do the results suggest about the ability of touch therapists to select the correct hand by
sensing energy fields?
O A. Since the confidence interval is not entirely below 0.5, there appears to be evidence that
touch therapists can select the correct hand by sensing energy fields.
O B. Since the upper confidence limit is above 0.5, there appears to be evidence that touch
therapists can select the correct hand by sensing energy fields.
OC. Since the lower confidence limit is below 0.5, there does not appear to be sufficient
evidence that touch therapists can select the correct hand by sensing energy fields.
O D. Since the confidence interval is not entirely above 0.5, there does not appear to be
sufficient evidence that touch therapists can select the correct hand by sensing energy
fields.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 3 images
