HW #9 - 3 a b ADFG 17 ACFG 19 ABEG 18 c d B 2 C – 3 Total...

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A 2 Chris Martin Operations Management Homework #9 1) a) b) Activity ES LS Slack A 0 0 0 B 2 2 0 C 6.5 6.5 0 D 2 5.5 3.5 E 2.5 6 3.5 F 7.5 7.5 0 G 7.5 8 .5 H 7.5 8 .5 I 10 10 0 J 12 12 0 K 15.5 15.5 0 c) 2 - .5 = 1.5 days d) 3.5 days 2) a) Activity μ σ 2 A 12 16 B 5 1 C 7 1 D 6 4 E 10 9 F 13 16 G 9 4 Expected Completion 41 Weeks B 4.5 C 1 D .5 E 1.5 F 2.5 H 2 G 2 I 2 J 3.5 K 1.5 Critical Path: ADFG : 39 ACFG : 40 ACEG : 38 ABEG : 36
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b) z = (42 – 40) / (37 .5 ) = .329 Look up on z table = .1293+.5 = 62.93% c) 40 + 1.28(39 .5 ) = 48 weeks
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Unformatted text preview: 3. a) b) ADFG 17 ACFG 19 ABEG 18 c) d) B - 2 C – 3 Total Costs = $290 D – 1 E – 1 F – 1 G – 1 d) 19 (days) - $400,000; 18 - $360,000; 17 - $350,000; 16 - $370,000; 15 - $400,000; 14 - $440,000 Min = 17 days, $350,000 A $100 B $40 C $10 D $40 E $30 F $30 G $80 A 2 B 4 C 8 D 6 E 7 F 4 G 5...
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