I know the test stat for two means.

H0: Mu1 - Mu2 = 0, Ha: Mu1 - Mu 2 > 0

The data is:

Male: X: 6.8, s: 6.6, n: 291

Female: X: 2.4, s: 4.5, n: 519

After doing the problem, the answer I received was 10.23, I want to check whether this is correct as it seems too large?

Thanks!