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Fasolo Elisa - Università degli Studi di Padova

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4.3 – Grafici ed istogrammi delle <strong>di</strong>fferenze logaritmiche delle serie<br />

DJ UBS_LOG<br />

UBS_LOG<br />

Densità<br />

0.06<br />

0.04<br />

0.02<br />

0<br />

-0.02<br />

-0.04<br />

-0.06<br />

-0.08<br />

40<br />

35<br />

30<br />

25<br />

20<br />

15<br />

10<br />

5<br />

0<br />

2002 2003 2004 2005 2006 2007 2008 2009<br />

Statistica test per la normalità:<br />

Chi-quadro(2) = 220,904 p-value = 0,00000<br />

-0.06 -0.04 -0.02 0 0.02 0.04<br />

UBS_LOG<br />

UBS_LOG<br />

N(0,00018074 0,011996)<br />

33

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