what is the answer

Question 2 13 pts A researcher wants to test a new method for teaching long division. He randomly assigns 21 4th graders to learn the new method. The remaining 23 learned long-division in the classical way. At the end of the session, all of the students took a test. sample sample sample standard Group size mean deviation New Method 21 51.48 12.01 Classic Method 23 41.52 16.76 What type of test would you perform to see if the average score for the new method is different from the mean score for the classical method? One-sample