Answer:
To test my hypotesis I should take two groups of students, one that will study for the exam and other that won't, and make them take a test. Then, I will compare the grades of the two groups and, if the group that studied got better grades, I will conclude that my hypothesis was correct.
Explanation:
The six steps of the scietific method are: 1 Ask a question; 2 Research; 3 Propose an hypothesis; 4 Experiment; 5 Analize the data; 6 Accept or Reject the hypothesis
Since I already have questioned if what my friend says it's correct and I have an hypothesis, I only need to follow steps 4 to 6