Examlex
A paleobotanist discovers fossils of fan-shaped gymnosperm leaves.Which group contains the most likely modern relative of the plant that produced these leaves?
Null Hypothesis
The hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.
Statistically Significant
A term indicating that the observed effect or relationship in data is unlikely to be due to chance, based on a predetermined significance level.
Null Hypothesis
An initial assumption which posits that no meaningful variance or impact exists, serving as the basis for beginning statistical analysis.
Significance Level
The probability of rejecting the null hypothesis in a statistical test when it is actually true, commonly denoted as alpha (α) and used as a threshold for determining statistical significance.
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