A nutritionist wants to compare the effect of two different breakfast types (high-protein vs. high-carbohydrate) on concentration levels in college students. Each student is randomly assigned to eat one breakfast type on different days, and their concentration score (out of 100100) is measured one hour after eating. What is the response variable in this study? What are the treatments?

Response variable: Concentration scoreTreatments: High-protein and high-carbohydrate breakfasts

Response variable: Breakfast typeTreatments: Concentration score and student

Response variable: StudentTreatments: Breakfast type and concentration score

Response variable: Time after eatingTreatments: High-protein and high-carbohydrate breakfasts

A nutritionist wants to compare the effect of two different break...

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