Table 8. Mean and standard deviation of actual ground time
G/T(분)
30∼40
40∼50
50∼60
60∼70
계획(
μ
/
σ
)
34.1/1.9
42/2.4
52.2/2.5
61.6/2.3
실제(
μ
/
σ
)
35.4/6.8
40.1/7.5
46.5/9.2
54.1/9.2