Examlex
Medical practice in Carolingian times stressed the use of
Null Hypothesis
A hypothesis that there is no effect or no difference, and it is the statement that researchers aim to test against.
Z-statistic
A measure that quantifies the difference between the observed value and the expected value under the null hypothesis, expressed in terms of standard deviations.
Do not Reject
A decision in hypothesis testing that indicates insufficient evidence to conclude the alternative hypothesis is true.
Standard Deviation
A measure of the amount of variation or dispersion of a set of values, indicating how much the values differ from the mean of the set.
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