Hybrid Support Vector Regression and Autoregressive Integrated Moving Average Models Improved by Particle Swarm Optimization for Property Crime Rates Forecasting with Economic Indicators

Table 4

Paired samples test.

	Paired differences
	Mean	Std. deviation	Std. error mean	95% confidence interval of the difference		t	df	Sig. (2-tailed)
				Lower	Upper
Pair 1 PCR-ARIMA	−50.43259	58.03148	25.95247	−122.48819	21.62301	−1.943	4	0.124
Pair 2 PCR-PSOARIMA	−48.38690	59.74264	26.74264	−122.63637	25.86257	−1.809	4	0.145
Pair 3 PCR-PSOSVR	4.63141	5.71462	5.71462	−11.23491	20.49773	0.810	4	0.463
Pair 4 PCR-PSOSVR_ARIMA	5.64408	5.12651	5.12651	−8.58939	19.87756	1.101	4	0.333
Pair 5 PCR-PSOSVR_PSOARIMA	4.29777	5.04821	5.04821	−9.71831	18.31385	0.851	4	0.443

Legend: Pair 1: actual data and ARIMA; Pair 2: actual data and PSOARIMA; Pair 3: actual data and PSOSVR; Pair 4: actual data and PSOSVR_ARIMA; Pair 5: actual data and PSOSVR_PSOARIMA.