Hypothesis Tests in Python

The most common way to compare the means between two independent groups is to use a two-sample t-test. However, this test assumes that…

The Ljung-Box test is a statistical test that checks if autocorrelation exists in a time series. It uses the following hypotheses: H0: The residuals…

When we’d like to test whether or not a single variable is normally distributed, we can create a Q-Q plot to visualize the distribution…

Runs test is a statistical test that is used to determine whether or not a dataset comes from a random process. The null and…

The Kolmogorov-Smirnov test is used to test whether or not or not a sample comes from a certain distribution. To perform a…

The Shapiro-Wilk test is a test of normality. It is used to determine whether or not a sample comes from a normal…

Grubbs’ Test is used to identify the presence of outliers in a dataset. To use this test, a dataset should be approximately…

A binomial test compares a sample proportion to a hypothesized proportion. For example, suppose we have a 6-sided die. If we roll it 12…

An F-test is used to test whether two population variances are equal. The null and alternative hypotheses for the test are as follows: H0:…

The Wilcoxon Signed-Rank Test is the non-parametric version of the paired samples t-test. It is used to test whether or not there…