Examlex
Sometimes, in a study with both a main effect (or two) and an interaction, the interaction is the only important finding. Explain, using the caffeine study to illustrate.
Alternative Hypothesis
In hypothesis testing, the hypothesis that contradicts the null hypothesis, indicating there is an effect or a difference.
Test Statistic
An outcome obtained from samples in a hypothesis experiment, crucial in deciding if the null hypothesis should be dismissed.
P-value
Assuming the correctness of the null hypothesis, it is the possibility of obtaining test results that are equally or more extreme than those observed.
Sample Standard Deviation
A measure of the amount of variation or dispersion of a set of values in a sample.
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