Examlex
The diagram below shows three approximate locations of the sun along the western horizon. Which number indicates the location of the sun at sunset on December 21st for an observer at latitude 48 N?
P-value
The probability of obtaining test results at least as extreme as the ones observed during the test, assuming that the null hypothesis is true.
Level of Significance
The probability of rejecting the null hypothesis in a statistical test when it is true, often denoted by alpha.
One-tailed
Describes tests or confidence intervals that focus on one direction of effect or relationship, either greater than or less than a certain value.
Null Hypothesis
A statement in hypothesis testing that assumes no significant difference or effect exists between certain populations or variables.
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