A Large Company That Develops, Distributes, and Grades National Standardized $\alpha$

Essay

A large company that develops, distributes, and grades national standardized examinations wants to pilot test a new examination. A group of 20 students is used for the study. Each student is given two versions of the examination. The order in which the students take the examinations is randomly assigned. The students' scores follow.
Use Excel to test to determine if the differences in the students' scores between the two versions of the examination are significantly different. Use $\alpha$ = .10.