I am doing practice questions for hypothesis testing, for two means, n is large.
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...