Calculate power & sample size for one-sample, two-sample and k-sample experiments. Advanced power and sample size calculator online: calculate sample size for a single group, or for …

Calculator to determine the minimum number of subjects to enroll in a study for adequate power.

Choose which calculation you desire, enter the relevant population values for mu1 (mean of population 1), mu2 (mean of population 2), and sigma (common standard deviation) and, if …

Jun 21, 2022 · You can include a sample size calculation or power analysis for secondary hypotheses. Secondary hypothesis may only be tested using a subset of the sample or a …

Power consumption calculator: calculates electric power / voltage / current / resistance. Enter 2 values to get the other values and press the Calculate button: Voltage (V) calculation from …

Calculate required sample sizes for statistical tests with specified power and effect size. Free tool for experimental design planning.

Sample size planning aims to select a sufficient number of subjects to keep α and β low without making the study too expensive or difficult. How many subjects do I need to find a statistical & …