Question: Consider the central moment k E (X )k . Construct an estimator bk for k without assuming known mean . In general,

Consider the central moment ¹k Æ E

£

(X ¡¹)k ¤

. Construct an estimator b¹k for ¹k without assuming known mean ¹. In general, do you expect b¹k to be biased or unbiased?

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