252samp1ans

# 252samp1ans - 80 X 2 250/3 or X 2(X 1 X 2 X 3/3 X 1 X 2 X 3...

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BA 252 Dr. Campbell Samples I - Answers 1. a) 3-period moving average: 85 2-weighted moving average: 84.2 exponential smoothing: 84.4 = 85 + 0.3(83-85) b) 3-period moving average: 84 2-weighted moving average: 82.3 exponential smoothing: 83.68 = 84.4 + 0.3(82-84.4) c) MAD = 3.5 MSE = 12.5 MAPE = 4.33% = (100/2)[3/82+4/80] 2. a) y = -66.22 + 7.31x b) 58.05 c) graph (use two points to draw the line; for example x=10 gives y=6.88 and x=20 gives y=79.98) 3. a) X 32 0.3(X 12 +X 22 +X 32 ) b) X 13 +X 23 +X 33 X 11 +X 12 +X 13 +X 14 c) X 21 +X 22 +X 23 +X 24 1.2(X 31 +X 32 +X 33 +X 34 ) 4. X i = tons of freight loaded in hold i, where i=1 is front; i=2 is middle; and i=3 is rear. Minimize Z = 10X 1 + 20X 2 + 15X 3 subject to X 1 100 X 2 120 X 2

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Unformatted text preview: 80 X 2 250/3 or X 2 (X 1 + X 2 + X 3 )/3 X 1 + X 2 + X 3 = 250 X 1 - X 3 20- X 1 + X 3 20 X 1 , X 2 , X 3 5.1 X1= 0 X2= 42 X3= 6 X4= 0 Profit= 372 5.2 a) same as above. 5.3 Profit decreases by 144 (144=40 3.6). 6. The decision tree is as follows. The decision is to select the high technology design. The expected value is \$220,000. 7. a 8. b 9. c 10. d high tech low tech sold scrap not obsolete (0.7) obsolete (0.3) not obsolete (0.6) obsolete (0.4)-100,000 = 400,000-500,000 300,000 = 800,000-500,000-650,000 = -150,000-500,000 700,000 = 2,200,000-1,500,000-900,000 = 600,000-1,500,000 220,000 140,000...
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## This note was uploaded on 02/15/2012 for the course BA 252 taught by Professor Jamescampbell during the Winter '03 term at UMSL.

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252samp1ans - 80 X 2 250/3 or X 2(X 1 X 2 X 3/3 X 1 X 2 X 3...

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