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7. Suppose that X; ~ N(,0), i = 1,..., n and Zi ~ N(0,1), i = 1,..., k, and all variables are independent. State the distribu

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Son theo we wil use ?f X AN,2) N (H, ) Frshes T is dehind as: T E X2 where is a standard nornd Varite dPdpede T a chi-squr VCn) A (sag) (a) want we Z,NNIO,) Z2N (o,) z~ Yu) Then Z1 Z. A = , Eu .A 2 I fs not mnhoned wht z represeats. (b) Incomplete qN(o,1) So A = 21 the form X2 nA (x-) o. A= 2

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7. Suppose that X; ~ N(,0), i = 1,..., n and Zi ~ N(0,1), i =...
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