Are the GPAs of male fraternity members the same as the GPAs of university males who do not belong to a fraternity?
Ha: Male fraternity members have a different GPA compared to university men not in a fraternity.
H0: Male fraternity members have the same GPA compared to university men not in a fraternity.
I used an alpha of .05. Based on my data, I was not able to reject the null hypothesis. There is no statistical difference between the mean GPA of Fraternity Men vs Non-Fraternity Men.
My conclusions were based upon data gathered over 9 years at Northwestern University. I obtained the data from the following website:
I analyzed this data using our software to come to the above conclusion.
I located a research article that addressed the same question. The research article concluded that the GPAs were not statistically different. The link to this website follows:
Mean 3.3596 Std. Deviation .03674 Std. Error Mean .00707
Mean 3.4152 Std. Deviation .20217 Std. Error Mean .03891
Sig. (2-tailed) .166
If Alpha is .05, Sig. of .166 > .05; therefore, fail to reject the null Hypotheses (H0). We conclude that the difference in means is not statistically different.