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Unformatted text preview: of the Red Army soldiers is 82 kg. H : = 85 vs. H 1 : 85 2 tailed. = 0.2302. / 2 = 0.1151. 2 z = z 0.1151 = 1.20 . Rejection Region: Reject H if Z = X n< 2 zor Z = X n> 2 z 2 X n z< or 2 X n z + > 9 10 20 . 1 85 X< or 9 10 20 . 1 85 X + > 81 < X or 89 > X Power = P ( Reject H  H is false ) = P ( 81 X <  = 82 ) + P( 89 X >  = 82 ) = > + < 9 10 82 89 Z P 9 10 82 81 Z P = P ( Z < 0.30 ) + P( Z > 2.10 ) = 0.3821 + 0.0179 = 0.40 ....
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This note was uploaded on 12/15/2011 for the course STAT 409 taught by Professor Stephanov during the Fall '11 term at University of Illinois at Urbana–Champaign.
 Fall '11
 STEPHANOV

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