id 3. Let X1, X2, ..., X 1 N(0,03) and Y1, 72,..., Ym N(02,03) independently. Denote...

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id 3. Let X1, X2, ..., X 1 N(0,03) and Y1, 72,..., Ym N(02,03) independently. Denote 0 = (01,02,0z) (a) Write down the expre

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from the observed data Log - likelihood log (los) constant- nlog (03) 2 , (2; -0,)? mbong (03) 203 @ (; - 02) 2 203 (6) wit o You o You 210-1) o D: 2 (m=1) O2 0₂2 (onen) +2 (n-1) 1 Oz 12 (0-1)0, 21m-1)0, 2 O₂2 (d) under Ho + 21m-1) Yes Partially diffe

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