Topic: Conditions for mean inference

Common Mistakes When Checking Conditions

Verifying Conditions From a Described Study

What to Do When Conditions Are Not Met

Checking Independence Between Two Groups

Conditions for One-Sample Versus Paired Data

Identifying Skewness and Outliers in Small Samples

What to Check With a Small Sample of 12 Observations

Checking the 10% Condition for Independence

Robustness of t Procedures

Reading a Normal Probability Plot