You decide to test the effectiveness using the drug and a, Ask an Expert

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You decide to test the effectiveness using the drug and a placebo. You select a select a group of 500 subjects and randomly assign them to either the treatment group or the placebo group.

Is this an observational study or a designed experiment? Explain
What is the explanatory variable?
What is the response variable?
If this is an experiment, diagram the experiment.
You decide to "double blind" the study. What does that mean?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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