Table 2. Flight aptitude evaluation
t
-test by gender
Group
Obs
Mean
Std. Dev.
95% Conf. Interval
Female
9
88.166
3.124
85.764
90.568
Male
99
89.809
3.221
89.166
90.451
Diff
-1.6424
-3.8610
0.57621
diff = mean(0) - mean(1)
Ho: diff = 0
t
= -1.467
degrees of freedom = 106
Ha: diff < 0
Pr(T<t) = 0.0726
Ha: diff != 0
Pr(|T|>|t|) = 0.1451
Ha: diff > 0
Pr(T>t) = 0.9274