The unit coordinator of the MBA statistics unit at Holmes institute wants to determine whether there are significant differences between student performance across campuses. A random sample of 18 students were selected with 6 students in each campus. The table below shows the student grades in T1 2022.

Campus Location
Melbourne	Sydney	Brisbane
75	55	77
68	70	55
79	65	70
90	60	60
65	70	65
72	78	70

At the 5% level of significance, is there evidence of a significant difference in students' performance between three campuses? Use the six steps process of hypothesis testing to answer the question.