How many subjects are needed to show an increase in biomarker concentration in disease group compared to control group if differences of less than 1 sigma are not considered significant. Assume he required level of significance is 5% and the required power of the test is 90%. f the control group measurements are already available from 140 subjects what is the disease ample size that is needed.
How many subjects are needed to show an increase in biomarker concentration in disease group compared to control group if differences of less than 1 sigma are not considered significant. Assume he required level of significance is 5% and the required power of the test is 90%. f the control group measurements are already available from 140 subjects what is the disease ample size that is needed.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Transcribed Image Text:How many subjects are needed to show an increase in biomarker concentration in disease group
compared to control group if differences of less than 1 sigma are not considered significant. Assume
the required level of significance is 5% and the required power of the test is 90%.
If the control group measurements are already available from 140 subjects what is the disease
sample size that is needed.
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