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	param	t-stat
$ω$	2.2055	4.89
$α$	0.1728	3.32
$β$	0.5418	5.88
$γ_{1}$	-0.0503	-0.49
$γ_{2}$	0.1673	1.10
$γ_{3}$	-0.2146	-1.85
$γ_{4}$	0.2786	2.23
$γ_{5}$	-0.3620	-2.81
$γ_{6}$	0.2800	2.41
$γ_{7}$	-0.1237	-1.70

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Ulta Beauty Inc Zero Slope Spline-GARCH Volatility Analysis

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