Statistical tests

Definition

Statistical tests are procedures used to make decisions or draw conclusions about populations based on information obtained from samples. These tests help determine whether observed differences or relationships between variables are statistically significant or simply due to chance.

Related terms

Hypothesis Testing: A process of making inferences or decisions about a population based on sample data, using statistical tests.

Type I Error: Rejecting the null hypothesis when it is actually true, indicating a false positive result.

Power of a Test: The probability of correctly rejecting the null hypothesis when it is false, indicating a true positive result.