College book stores have recently introduced the ability to rent textbooks as opposed to the traditional route of purchasing textbooks. A large local university is concerned that the students will not be so willing to rent textbooks for their major courses as they feel students might want to keep these books for future reference. A random sample of 500 students was collected where students were asked to reflect upon their first class of the week and answer the following two questions.

Create a 97% confidence interval for the difference in proportions students who would prefer to rent their
textbook in non-major classes compared to major classes (let difference = non-major - major)