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Does eating chocolate before an exam help? In a study conducted by some research

ID: 3227421 • Letter: D

Question

Does eating chocolate before an exam help? In a study conducted by some researchers, 100 students were randomly assigned to two groups. The first group was given two chocolate bars to ear one hour before the exam. The second group was given a harmless placebo. These students were then given a math exam. The summary statistics for the exam scores are in the table provided. What type of sampling design best describes this experiment? Two Sample Design Paired Design Random Sampling Design Observational Study Design

Explanation / Answer

Here, there are two groups. First group given two chocolate bars and second group given harmless placebo.

Two sample design best describes this experiment.