Unformatted text preview: 1 4 ( = f Y 1 ( y 1 ) Â· f Y 2 ( y 2 ) = 1 2 Â· 1 2 ) . By geometry, Î± is the volume of the triangular wedge in the lower lefthand corner of the square over which Y 1 and Y 2 are deï¬ned. The hypotenuse of the triangle in the Y 1 Y 2plane has the equation y 1 + y 2 = k . Therefore Î± =area of triangle Ã— height of wedge= 1 2 Â· k Â· k Â· 1 4 = k 2 8 . For Î± to be 0.05, k = âˆš . 04 = 0 . 63 . 1...
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 Spring '07
 Xu,Lily
 Statistics, Normal Distribution, Hypotenuse, Type I and type II errors, triangle, y1 y2

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