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Use this calculator to find the test statistic value for different methods and scenarios, such as one or two population means, proportions, or variances. Enter the data, select the format, and click on the "Calculate" button to get the result and interpretation.
Perform one-sample, two-sample or paired t-tests online with this calculator. Learn how to use the t-test formula, degrees of freedom, p-value and critical values for different scenarios.
Calculate test statistics for one population mean, two means, one population proportion, and two population proportions. Enter the claimed hypothesis, sample mean, sample size, and standard deviation to get the test value and p-value.
Calculate the test statistic, p-value and critical value for hypothesis tests about one population mean. Choose from z or t distribution, lower tail, upper tail or two-tailed tests, and see examples and explanations.
Compare the means of two groups with a t test using this online tool. Choose from unpaired, welch's, or paired t tests, enter data or means and standard errors, and view results and graphs.
Use this calculator to perform t-tests for comparing means of two or one data sets. Input data, choose test type, significance level and get step by step explanation and results.
The best online calculator to calculate statistics. Statistical tests, charts, probabilities and clear results. Automatically checks assumptions, interprets results and outputs graphs, histograms and other charts.
