Table 8. Helicopter transition evaluation results evaluation
t
-test by academic level
Group
Obs
Mean
Sth. Dev.
95% Conf. Interval
College
57
89.560
1.973
89.037
90.084
h-school
12
84.733
0.912
84.153
85.312
Diff
4.8275
.5848
3.6602
5.9948
diff = mean(0) - mean(1)
Ho: diff = 0
t
= 8.2546
degrees of freedom = 67
Ha: diff < 0
Pr(T<
t
) = 1.0000
*
Ha: diff != 0
Pr(|T|>|t|) = 0.0000
Ha: diff > 0
Pr(T>
t
) = 0.000
p
<.05