For a sign test to be valid, a large sample must be selected from a population which is approximately normally distributed.

Name: For a sign test to be valid, a large sample must be selected from a population which is approximately normally distributed.
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Quizplus · Accepted Answer

The sign test does not require the population to be normally distributed, nor does it require a large sample size. It is a non-parametric test that only requires the data to be paired and the differences to be independent.

For a Sign Test to Be Valid, a Large Sample