A researcher selected a random sample of 10 psychology graduates and found the standard deviation of their grade point average was 0.72 . Then the researcher selected a random sample of 14 engineering students and found that the standard deviation of their grade point average was 0.51 . At \(\alpha=0.01\), can we conclude that the variance of the grade point averages of the psychology graduates is greater than the variance of the grade point averages of the engineering graduates?