at the university of michigan, more spring term courses are offering asynchronous instruction so that students can complete the course remotely while away for summer break. administrators believe that class enrollments have increased by more than 10 students, on average, when comparing the course enrollments for spring 2022 with spring 2018 (2022 - 2018). they take a random sample of 14 spring courses, record the course enrollments from both time periods, and seek to test the following hypotheses.