TOM302 HW CH82

TOM302 HW CH82 - TOM302 HW #CH8 8.12 = 190000 = 50000 N=40...

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Unformatted text preview: TOM302 HW #CH8 8.12 = 190000 = 50000 N=40 50000 X = = 7905.14 40 P(z> 200000 - 190000 ) = 1.26 7905.14 P(z>1.26) = 0.5-0.3962 = 0.1038 8.19 N=50 x = 5.7 2 .5 50 = 0.35 x = P(z 6.5 - 5.7 ) = P ( z 2.29) = 0.5 + 0.4890 = 0.9890 0.35 8.25 a. = 0.426 b. p= 70/200 = 0.35 (1 - ) 0.426(1 - 0.426) = = 0.035 n 200 0.35 - 0.426 ) =P(z -2.17) = 0.5 + 0.4850 = 0.9850 d. P(p 0.35) = P(z 0.035 c. p = 8.37 N=40, = 0 .2 0.2(1 - 0.2) 300 - 40 * = 0.059 40 300 - 1 0.15 - 0.2 ) = P ( z -0.85) = 0.5 + 0.3023 = 0.8023 P(p 0.15) = p( z 0.059 p = 8.58 p = 0.4(1 - 0.4) 400 - 240 * = 0.158 240 400 - 1 P( p 0.6) = (0.6 - 0.75) = -0.95 0.158 0.5+0.3289 = 0.8289 ...
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TOM302 HW CH82 - TOM302 HW #CH8 8.12 = 190000 = 50000 N=40...

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