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Practice Problem 3– pain relief A randomized trial is designed to evaluate the effectiveness of a newly developed pain reliever to reduce pain in patients following joint replacement surgery. Patients were asked their level of pain then given the designated treatment. After 30 minutes, they were asked to rate their pain gain. Results were categorized as meaningful reduction (3+ points) or no meaningful reduction (<3 points). The table below shows the data collected. Is there a relationship between the type of treatment given and pain reduction? Meaningful reduction (3+ points) No meaningful reduction (<3 points) Total New pain reliever 23 27 50 Higher dose of new pain reliever 30 20 50 Standard pain reliever 11 39 50 Total 64 86 150 22:12 / 22:40 1x

Practice Problem 3– pain relief A randomized trial is designed to evaluate the effectiveness of a newly developed pain reliever to reduce pain in patients following joint replacement surgery. Patients were asked their level of pain then given the designated treatment. After 30 minutes, they were asked to rate their pain gain. Results were categorized as meaningful reduction (3+ points) or no meaningful reduction (<3 points). The table below shows the data collected. Is there a relationship between the type of treatment given and pain reduction? Meaningful reduction (3+ points) No meaningful reduction (<3 points) Total New pain reliever 23 27 50 Higher dose of new pain reliever 30 20 50 Standard pain reliever 11 39 50 Total 64 86 150 22:12 / 22:40 1x

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Practice Problem 3– pain relief A randomized trial is designed to evaluate the effectiveness of a newly developed pain reliever to reduce pain in patients following joint replacement surgery. Patients were asked their level of pain then given the designated treatment. After 30 minutes, they were asked to rate their pain gain. Results were categorized as meaningful reduction (3+ points) or no meaningful reduction (<3 points). The table below shows the data collected. Is there a relationship between the type of treatment given and pain reduction? Meaningful reduction (3+ points) No meaningful reduction (<3 points) Total New pain reliever 23 27 50 Higher dose of new pain reliever 30 20 50 Standard pain reliever 11 39 50 Total 64 86 150 22:12 / 22:40 1x
Transcribed Image Text:Practice Problem 3– pain relief A randomized trial is designed to evaluate the effectiveness of a newly developed pain reliever to reduce pain in patients following joint replacement surgery. Patients were asked their level of pain then given the designated treatment. After 30 minutes, they were asked to rate their pain gain. Results were categorized as meaningful reduction (3+ points) or no meaningful reduction (<3 points). The table below shows the data collected. Is there a relationship between the type of treatment given and pain reduction? Meaningful reduction (3+ points) No meaningful reduction (<3 points) Total New pain reliever 23 27 50 Higher dose of new pain reliever 30 20 50 Standard pain reliever 11 39 50 Total 64 86 150 22:12 / 22:40 1x
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