The administration wants the confidence interval to have a width of 10 students, but we have been calculating the proportion of students who are planning on taking the class that are also eligible

The administration wants the confidence interval to have a width of 10 students, but we have been calculating the proportion of students who are planning on taking the class that are also eligible. Let's calculate the confidence we would need to have as a proportion eligible students. In other words, from the number of students who are eligible to take the class, determine what proportion of that number equals 10 students.

num_eligible_students =  ... width_as_proportion = 10/num_eligible_students print(width_as_proportion)