Examlex
Suppose that you wish to perform a chi-square test of independence. The sample data is given in the contingency table below. Are the assumptions for the test met? If not, which assumption is violated?
Experiments
A method of scientific investigation involving manipulation of variables to test a hypothesis and observe effects on a controlled environment or group.
Control Group
In an experiment, a comparison group of participants that does not receive the experimental treatment.
Variable Group
A set of elements or entities that are subject to change and can be measured and analyzed within a study.
Confound Group
A group in an experiment that introduces variability to the outcome, making it difficult to determine the effect of the treatment.
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