t-Test Post-hoc Statistical Power Calculator
Compute the observed power for a one-tailed or two-tailed t-test study, given the observed p-value, the observed effect size, and the total sample size. When a t-based model is not significant in an analytics study, it may be useful to know whether the model had sufficient power to detect the expected or hypothesized effect.
Please provide the necessary values, and then click 'Calculate'.