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Unformatted text preview: = ( area of the right tail ) = P ( Z ≥ 2.00 ) = 0.0228 . b) (7) If α = 0.035 is used, find ( the significance level ) and ( the power of the test if the true value of the overall average height of adult male giraffe is μ = 15.75 ). Significance level = α = 0.035 . Test Statistic: σ is known. 9 9 . 15 X X Z σ μ== n . Rejection Region: Right  tailed. Reject H if Z > z α = 1.81. 9 9 . 81 . 1 15 X ⋅ + > = 15.543. Power ( μ = 15.75 ) = P ( Reject H  μ = 15.75 ) = P ( X > 15.543  μ = 15.75 ) = > 9 9 . 75 . 15 15.543 Z P = P ( Z > – 0.69 ) = 0.7549 ....
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This note was uploaded on 11/15/2011 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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