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Improving the energy level of customers

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A study involves a company trying to determine if their new drink is effective in improving the energy level of their customers. There is a treatment group (drinks the drink daily for 10 months) and the control group (does not consume the drink). After 10 months, participant volunteers were called into the lab and had heart rate and cholesterol levels measured. If this study involves volunteers participating, and the volunteers get to choose whether they are in the treatment or control group, does this still qualify as an experimental study?

Reference no: EM132850890

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