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significance level

American  

noun

  1. (in the statistical test of a hypothesis) the maximum probability of a Type I error for all distributions consistent with the null hypothesis.


Etymology

Origin of significance level

First recorded in 1945–50

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

At the 5 percent significance level, there is enough evidence to conclude that the mean amount of summer rain in the northeaster US is less than 11.52 inches, on average.

From Textbooks • Mar. 27, 2020

Conclusion: At the 5 percent significance level, there is insufficient evidence to conclude that the mean number of sick days is not 10.

From Textbooks • Mar. 27, 2020

At the 1 percent significance level, there is not enough evidence to conclude that freshmen students study less than 2.5 hours per day, on average.

From Textbooks • Mar. 27, 2020

The decision seems an appropriate one and shows the thought process when setting the significance level.

From Textbooks • Nov. 29, 2017

Conclusion: At the 5% significance level, there is insufficient evidence to conclude that car size and family size are dependent.

From Textbooks • Nov. 29, 2017

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