Hypothesis testing applies to all forms of statistical inquiry. For example, it can be used to determine whether there are differences between population parameters or to gain an understanding of ...

Hypothesis testing is a formal procedure for investigating our ideas about the world using statistics. It is most often used by researchers to test predictions, called hypotheses. The first step in ...

Define a composite hypothesis and the level of significance for a test with a composite null hypothesis. Define a test statistic, level of significance, and the rejection region for a hypothesis test.

This often takes the form of a null hypothesis, which is a statistical hypothesis that states ... Pearson's chi-square test works well with genetic data as long as there are enough expected ...

A descriptive statistic is used to summarize sample data. A test statistic is used in statistical hypothesis testing. Here is a table describing both population parameters and sample statistics ...

Under the null hypothesis (of equal proportions, specified frequencies, or specified proportions), this test statistic has an asymptotic chi-square distribution, with C - 1 degrees of freedom. In ...