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?
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?
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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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?
Total
Meaningful reduction
(3+ points)
No meaningful reduction
(<3 points)
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
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