Examlex
A sample of an element with a mass equal to that element's average atomic mass expressed in grams contains one mole of atoms.
Type II Error
The error that occurs when a statistical test fails to reject a false null hypothesis; also known as a "false negative."
True Null Hypothesis
The assumption or premise that there is no effect, difference, or relationship between the variables being studied, which might be rejected or not rejected based on statistical analysis.
Rejecting
In statistical hypothesis testing, the act of concluding that the null hypothesis is unlikely given the data, often signaled by a test statistic that falls outside a specified significance level.
Type II Error
The error that occurs when a false null hypothesis is not rejected.
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