I need help on this programming challenge in javascript/html

Create a web page that will allow a teacher to enter his or her students names and test scores into parallel arrays. The page should prompt the teacher for the number of students in the class and the number of tests administered. Use this information to create the appropriate number of parallel arrays. Then create the arrays and prompt the teacher for data to populate the arrays. Display the data on the web page in a table. Also display the high and low score for each test as well as the average for each test. Save the page with the filename class_parallel.html and submit your work as instructed by your teacher.