Private universities claim to offer a higher quality education compared to public universities as justification for their more expensive tuition rates. The implication is that better education in the classroom leads to better employees after graduation. As a HR specialist in charge of selecting the best possible future employees from a pool of applicants, you propose giving preference to applicants with degrees from private universities. Hoping to control for the influence of academic performance on on-the-job performance, you randomly select 25 pairs of employees based on their cumulative GPA, one with a degree from a private university and another with a degree from a public university, and record their last performance evaluation score in an Excel file. The data appears as follows:

Private University Alumni 85 82 75 91
Public University Alumni 89 78 77 72
GPA 4.0 3.9 3.8 3.7

What statistical test should you use to test your hypothesis?A)t test: Paired two sample for means B)t test: two sample assuming equal variancesC)z test: two proportionsD)t test: two sample assuming unequal variances