Statistical Power Calculation
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Power: One Sample Mean Hypothesis test
This utility can be used to calculate statistical power gained with given sample size when your aim is to test whether sample mean is significantly different than a hypothesized mean.
Formula used and other details
Sample mean (M)
Required
Sample mean in your study.
Standard Deviation of Sample mean (SD)
Required
Standard Deviation of sample mean in your study.
Your Hypothesized / known mean
Required
Hypothesized / known mean, against which sample mean is to be compared.
Total Number of participant in the study (N)
Enter positive number between 1 to 1000000
Required
Sample size in your study. Should be between 1 and 1000000
Confidence Level %
Enter positive number between 0.01 to 99.99
Required
In percentage. Commonly used values are 95, 99 and 90. Should be between 0.01 to 99.99.
One sided or two sided
Enter either 1 or 2
Required
One tailed or two tailed hypothesis
Power ( 1 - β) =