La Regressione Multipla - DSE
La Regressione Multipla - DSE
La Regressione Multipla - DSE
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Prima: Y = β0 + β1(X1 + ∆X1) + β2X2<br />
Dopo: Y + ∆Y = β0 + β1(X1 + ∆X1) + β2X2<br />
Differenza: ∆Y = β1∆X1<br />
Cioè,<br />
β1 =<br />
e, naturalmente,<br />
Infine,<br />
β2 =<br />
∆Y<br />
∆ X<br />
, mantenendo X2 costante<br />
1<br />
∆Y<br />
∆X<br />
2<br />
, mantenendo X1 costante<br />
β0 = valore previsto di Y quando X1 = X2 = 0.<br />
9
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