The department of management science at Tech has sampled 250 of its majors and compiled the following frequency distribution of grade point averages (on a 4.0 scale) for the previous semester:

GPA Frequency 0 6 0.5 1 0.5 6 1.0 4 1.0 6 1.5 20 1.5 6 2.0 35 2.0 6 2.5 67 2.5 6 3.0 58 3.0 6 3.5 47 3.5 6 4.0 18 250 The sample mean 1x2 for this distribution is 2.5, and the sample standard deviation (s) is 0.72.

Determine whether the student GPAs are normally distributed, using a .05 level of significance

(i.e., a = .05).

( LO,1)