Fitting Time Series Models to Fisheries Data to Ascertain Age

Table 3

Parameter estimates for best ARIMA models.

	Estimate	Standard error	t value	value
(a)
AR 1	1.6169	0.0559	28.932	<0.0001
AR 2	−0.9253	0.0506	−18.2994	<0.0001
MA 1	−2.063	0.1885	−10.9446	<0.0001
MA 2	1.2442	0.3565	3.4899	0.0009
MA 3	−0.1262	0.1803	−0.7	0.4864
Constant	−0.0051	0.0019	−2.6825	0.0093
(b)
AR 1	0.9625	0.0715	13.4632	<0.0001
AR 2	−0.9573	0.0561	−17.073	<0.0001
MA 1	−0.8789	0.0877	−10.0175	<0.0001
MA 2	1	0.0861	11.6125	<0.0001
Constant	−0.0083	0.0161	−0.5134	0.6094

(a) Parameter estimates for best time series model, ARIMA (2, 1, 3) (bold in Table 2). (b) Parameter estimates for second best time series model, ARIMA (2, 1, 2) (italic in Table 2).