Question: Question 7 (4 points) Does eating chocolate before an exam help?In a study conducted by some researchers, 100 students were randomly assigned to two groups.The

Question 7(4 points)

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.

nMeanStandard DeviationChocolate50805No Chocolate50755What type of sampling design best describes this experiment?

Question 7 options:

Two Sample Design

Paired Design

Random Sampling Design

Observational Study Design

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