One And Two-Sample Test Selection
Click the buttons below to select the appropriate test. Be sure and check the assumptions of the test you wish to use.
What kind of test do you want?
Tests for Means, Variability, Proportions, Rates, or Correlations NonparametricsMeans
Do you have a One or Two-Sample test?
One TwoMeans, Two-Sample
Do you have Independent or Dependent Samples?
Independent DependentMeans, Two-Sample, Independent
Is Sigma:
Known Unknown, but assumed equal Unknown, but assumed unequalMeans, Two-Sample, Independent, Sigma Known
Means, Two-Sample, Independent, Sigma Unknown and Equal
Means, Two-Sample, Independent, Sigma UnKnown and Unequal
Use: Two-sample Independent t-Test for Means - Sigma Unequal
Means, Two-Sample, Dependent
Variability
Do you have a One or Two-Sample test?
One TwoVariability, Two-Sample
Do you Independent or Dependent Samples?
Independent DependentVariability, Two-Sample, Independent
Can the populations be modeled with a Normal Distribution?
Yes NoVariability, Two-Sample, Independent, Normal
Use: Two-Sample F-Test
Variability, Two-Sample, Independent, Non-Normal
Variability, Two-Sample, Dependent
Proportions
Do you have a One or Two-Sample test?
One TwoProportions, One-Sample
Do you want an Exact Test?
Yes NoProportions, One-Sample, Approximate Test
Proportions, Two-Sample
Do you have Independent or Dependent Samples?
Independent DependentProportions, Two-Sample, Independent
Do you want an Exact Test?
Yes NoProportions, Two-Sample, Independent, Exact
Proportions, Two-Sample, Independent, Approximate
Proportions, Two-Sample, Dependent, Exact
Proportions, Two-Sample, Dependent, Approximate
Correlations
Do you have a One or Two-Sample test?
One TwoCorrelations, One-Sample
Is the test for Rho = 0, or Rho = Non-Zero?
Zero Non-ZeroCorrelations, One-Sample, Rho = 0 Test
Use: One-Sample Test for Rho = 0
See: Correlation Tests - Form or Mean/Dispersion Tests - Form
Test