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: Compute critical t values for the t-distribution using the form below. Please type significance level \(\alpha\), number of degrees of freedom and indicate the...

Instructions: Compute t-distribution probabilities using the form below. Please type the number of degrees of freedom associated to the t-distribution, and provide details about the...

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