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Harvard Biostatistics Multiple Lecture Courses

Outliers

What are outliers in the data?

Source: Engineering Statistics Handbook (online)

How to access: This is free to access from the above link.

Contents: This online handbook covers statistics for engineering. In Section 7.1.6, there is an entry about "outliers." It explains the definition of outliners, how to describe the data and the caution when handling the outliers.

Example(s) used in this: A hypothetical data is used.

Prior math/stat knowledge to fully understand matrials: None

Grubbs' Test for Outliers

Source: Engineering Statistics Handbook (online)

How to access: This is free to access from the above link.

Contents: This online handbook covers statistics for engineering. Section 1.3.5.17.1 introduces Gibbs' test to detect a single outliear in a univariate data that follows a normal distribution.

Example(s) used in this: Mass spectrometer measurements on a uranium isotope (N=8)

Prior math/stat knowledge to fully understand matrials: Hypothesis testing, Normal distribution