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Table 2 Descriptive statistics for candidate threshold dummy variables

From: Framework for determining airport daily departure and arrival delay thresholds: statistical modelling approach

	Departure delay thresholds				Arrival delay thresholds
	dT50	dT60	dT70	dT80	aT50	aT60	aT70	aT80
Mean	0.945	0.499	0.267	0.051	0.829	0.363	0.182	0.044
Standard error	0.005	0.012	0.010	0.005	0.009	0.011	0.009	0.005
Standard deviation	0.229	0.500	0.442	0.221	0.377	0.481	0.386	0.206
Sample variance	0.052	0.250	0.196	0.049	0.142	0.231	0.149	0.042
Kurtosis	13.187	−2.002	−0.884	14.533	1.050	−1.679	0.715	17.654
Skewness	−3.895	0.005	1.057	4.064	−1.746	0.568	1.647	4.431
Sum	1726	911	487	94	1514	664	333	81
Count	1827	1827	1827	1827	1827	1827	1827	1827
Confidence level (95.0 %)	0.010	0.023	0.020	0.010	0.017	0.022	0.018	0.009

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