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Sequential sign test

version 1.0.0 (13.8 KB) by Jan Motl
A non-parametric test, which terminates, once the results become significant


Updated 23 May 2019

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In sequential hypothesis testing, the sample size is not fixed in advance. Instead data are evaluated as they are collected, and further sampling is stopped in accordance with a pre-defined stopping rule as soon as significant results are observed. Thus a conclusion may sometimes be reached at a much earlier stage than would be possible with more classical hypothesis testing.

Since the sign test is non-parametric, we do not care about the distribution of the samples. We just want them to be continuous.

Read the reference for the method description and assumptions:
Sequential Methods and Their Applications
by Nitis Mukhopadhyay, Basil M. de Silva
chapter 5.5

Cite As

Jan Motl (2020). Sequential sign test (, MATLAB Central File Exchange. Retrieved .

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MATLAB Release Compatibility
Created with R2018a
Compatible with any release
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