Question
I have a question can someone tell me what the check s1^2/s2^2 mean? S= standard deviation. The BOLD lettering and numbers. The main trial is
I have a question can someone tell me what the check s1^2/s2^2 mean? S= standard deviation. The BOLD lettering and numbers.
The main trial is conducted and involves a total of 200 patients.Patients are enrolled and randomized to receive either the experimental medication or the placebo.The data shown below are data collected at the end of the study after 6 weeks on the assigned treatment.
Experimental (n=100)
Placebo (n=100)
Mean (Std Dev) Systolic Blood Pressure
120.2 (15.4)
131.4 (18.9)
% Hypertensive
14%
22%
% With Side Effects
6%
8%
- Generate a 95% confidence interval for the difference in mean systolic blood pressures between groups.
Check s12/s22= 15.42/18.92=0.66
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