Distribution Comparisons of EAC Cost Growth
FIGURE 4. WEIBULL FIT TO WBS ST&E COST GROWTHS AIC = 145.37
Histogram of Data Rayleigh Distribution
0.8
0.5
0.4
0.2
0.0
0 1
2
3 4 5 6 7
Note. AIC = Akaike Information Criterion; ST&E = System Test and Evaluation; WBS = Work Breakdown Structure.
FIGURE 5. QUANTILE-QUANTILE PLOTS (LEFT: LOGNORMAL; RIGHT: WEIBULL) FOR COST WBS
QQ Plot
QQ Plot
6
6
5
5
4
4
3
3
2
2
1
1
0
1
2
3 4 5 6
0 1
2 3 4 5 6 Fitted Quantile
Fitted Quantile
Note. WBS = Work Breakdown Structure.
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Defense ARJ , Spring 2025, Vol. 32 No. 1
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