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What is the critical z value for this test at
Experiment
A scientific procedure undertaken to test a hypothesis, determine causality, or uncover specific effects under controlled conditions.
Experimental Group
In research, the group of participants who are exposed to the independent variable under investigation to study its effect.
Treatment
Medical care given to a patient for an illness or injury.
Confounding Variable
An external influence that affects the relationship between the independent and dependent variables in an experiment, potentially skewing the results.
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