Question: Let E[Y ] , 2 E h Y 2 i and 3 E h Y 3 i and consider

Let ¹ Æ E[Y ] , ¾2 Æ E h¡

Y ¡¹

¢2 i

and ¹3 Æ E h¡

Y ¡¹

¢3 i

and consider the sample mean Y Æ

1n Pni

Æ1 Yi . Find E

·³

Y ¡¹

´3

¸

as a function of ¹, ¾2, ¹3 and n.

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