Data considerations for Outlier Test

To ensure that your results are valid, consider the following guidelines when you collect data, perform the analysis, and interpret your results.

The data must be numeric: You must have numeric data, such as the weights of packages.
The sample data should be selected randomly: In statistics, random samples are used to make generalizations, or inferences, about a population. If your data are not collected randomly, your results may not represent the population. For more information, go to Randomness in samples of data.