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	param	t-stat
$ω$	0.8417	7.39
$α$	0.0577	7.41
$β$	0.8978	58.61
$γ_{1}$	-0.0083	-0.27
$γ_{2}$	0.0852	1.81
$γ_{3}$	-0.1829	-5.55
$γ_{4}$	0.1804	6.19
$γ_{5}$	-0.1350	-4.08
$γ_{6}$	0.0954	2.35
$γ_{7}$	-0.0346	-0.82
$γ_{8}$	-0.0049	-0.13
$γ_{9}$	0.0048	0.18

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Norfolk Southern Corp Zero Slope Spline-GARCH Volatility Analysis

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News Impact Curve

Volatility Forecast

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