Examlex
On its own, temperature flows from hot objects to cold objects.
Null Hypothesis
A default position that indicates no difference or no effect, set to be tested and possibly rejected in favor of an alternative hypothesis.
Test Statistic
A value calculated from sample data during a hypothesis test used to make a decision about the null hypothesis.
Null Hypothesis
A statement of no effect or no difference, used as a starting assumption for statistical significance testing.
Grand Mean
The mean of means, calculated by taking the average of several group means.
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