Please answer the following question in the photo. Show your work and include explanations because I do not understand how to calculate margin of error.Thanks

Darian conducts a study comparing the performance of individuals on the first quiz in each of two classes taken in the first term of their freshman year. The scores, out of 100, are provided for nine individuals in both classes. Class 1: 87, 78, 87, 85, 93, 98, 83, 82, 73 Class 2: 87, 86, 92, 90, 90, 91, 89, 78, 76 Given a confidence interval of [-2.54, 5.42], the margin of error is plus or minus: O 1.44. O 7.96. V 3.98. X 2.88. Next