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Margin of error for primary treatment effect as a function of treatment group difference and standard deviation
| Mean and SD of Buspirone Arm and Difference in Days* | |||
|---|---|---|---|
| Mean=20, SD=15 Diff*=6 days |
Mean=18, SD=10 Diff*=4 days |
Mean=16, SD=5 Diff*=2 days |
|
| 95% Confidence Interval Margin of Error | 4.13 days | 2.76 days | 1.37 days |
Note:
Difference in days is equal to the difference between the mean maximum days of continuous cocaine abstinence in the buspirone and placebo arms.
