hypothesis testing

Question

9-1: As a result of complaints from both students and faculty about lateness, the registrar at a large university is ready to undertake a study to determine whether the scheduled break between classes should be changed. Until now, the registrar has believed that there should be 20 minutes between scheduled classes. State the null hypothesis and the alternative hypothesis for this scenario.

Answer 1

Null hypothesis - That, neither the 20 minute break nor a 10 minute break will reduce lateness

Alternative hypothesis - That, a 5 minute break is short enough to allow students to get to the next class, whereas longer than 5 minutes results in student committing to some task in-between classes that results in the accrued lateness. The longer break is more conducive to induced distractions.