Student habits of engineering departments related to academic results have been investigated by using Student’ s t-test and Man-Whitney U-test of statistical hypothesis tests. Based on the questionnaire data about well-regulated life habits, there was a significant difference between the group of students with higher academic results and the group of students with lower academic results;for example, students who go to bed early tends to get better academic results than students who do not go to bed early. Several student habits such as eating breakfast every day and long staying in the university were correlated with academic results. On the other hand, there was no significant difference between the two groups with respect to student habits such as ways of spending their free time:internet surfing, talking with friends by mobile-phones (including e-mail), playing video games and so on.
