Instructions: This power calculator computes, showing all the steps, the minimum required sample size (\(n\)) to reach a given target statistical power (\(1-\beta\)), when testing...

Instructions: This power calculator computes, showing all the steps, the probability of making a type II error (\(\beta\)) and the statistical power (\(1-\beta\)) when testing...

Instructions: This Statistics calculator will compute the Cohen's d for you. Please provide the information required below: Sample Mean (\(\bar X\)) Population Mean (\(\mu\)) Population...

Instructions: This calculator computes a confidence interval for the population mean \(\mu\), in the case that the population standard deviation \(\sigma\) is not known, and...

Instructions: Enter the sample data below and the solver will provide step-by-step calculation of the sample mean, variance and standard deviation: Type the sample (comma...

Instructions: This calculator conducts a t-test for one population mean (\(\sigma\)), with unknown population standard deviation (\(\sigma\)), for which reason the sample standard deviation (s)...

Instructions: This calculator computes a confidence interval for the population mean \(\mu\), in the case that the population standard deviation \(\sigma\) is known. Please type...

Instructions: This calculator finds the minimum sample size required to estimate the population mean (\(\mu\)) within a specified margin of error. Please select type the...

Instructions: This calculator conducts a t-test for two paired samples. This test applies when you have two samples that are dependent (paired or matched). Please...