Instructions: This calculator computes the pooled variance and standard deviation for two given sample standard deviations \(s_1\) and \(s_2\), with corresponding sample sizes \(n_1\) and...

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 conducts a t-test for two population means (\(\mu_1\) and \(\mu_2\)), with unknown population standard deviations. This test apply when you have two-independent...

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

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

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

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)...