Which New Jersey universities have students with higher GPAs? A researcher compares the GPA of 20 randomly selected students from each of the following 3 schools: Seton Hall, TCNJ, and Rowan. The mean...

Which New Jersey universities have students with higher GPAs?  A researcher compares the GPA of 20 randomly selected students from each of the following 3 schools: Seton Hall, TCNJ, and Rowan. The mean GPAs were as follows: Seton Hall = 3.12, TCNJ = 3.39, Rowan = 2.90.  (These are all made up, by the way.)  SS_within
=  18.39  and SS_between
=  2.24.  What can the researcher conclude at alpha .05?