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Arthroscopic surgery for the treatment of knee pain is one of the most common orthopedic procedures, despite a lack of relevant scientific studies of its efficacy. One recent, double-blind study randomly assigned patients with knee pain to arthroscopic surgery or sham surgery. One year later, 62 of the 70 patients in the treatment group reported improvement, compared with 63 of the 76 patients in the control group.¹

Arthroscopic surgery for the treatment of knee pain is one of the most common orthopedic procedures, despite a lack of relevant scientific studies of its efficacy. One recent, double-blind study randomly assigned patients with knee pain to arthroscopic surgery or sham surgery. One year later, 62 of the 70 patients in the treatment group reported improvement, compared with 63 of the 76 patients in the control group.¹

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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A=     %
b=       %
c=        %
d=          %

Organize the study outcomes in a two-way table of counts. Obtain the conditional distribution of outcome, given treatment. Provide the conditional distribution results. Give each answer as a percent to one decimal place. No Improvement A = B = Arthroscopic Sham Improvement A C B D % %
Transcribed Image Text:Organize the study outcomes in a two-way table of counts. Obtain the conditional distribution of outcome, given treatment. Provide the conditional distribution results. Give each answer as a percent to one decimal place. No Improvement A = B = Arthroscopic Sham Improvement A C B D % %
Arthroscopic surgery for the treatment of knee pain is one of the most common orthopedic procedures, despite a lack of relevant scientific studies of its efficacy. One recent, double-blind study randomly assigned patients with knee pain to arthroscopic surgery or sham surgery. One year later, 62 of the 70 patients in the treatment group reported improvement, compared with 63 of the 76 patients in the control group.¹
Transcribed Image Text:Arthroscopic surgery for the treatment of knee pain is one of the most common orthopedic procedures, despite a lack of relevant scientific studies of its efficacy. One recent, double-blind study randomly assigned patients with knee pain to arthroscopic surgery or sham surgery. One year later, 62 of the 70 patients in the treatment group reported improvement, compared with 63 of the 76 patients in the control group.¹
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