# modEpp - ANSWERS Problem 1 From Table E.3 where N = 20 and...

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Practice Problems: Module E, Learning Curves Problem 1: The initial external tank for NASA’s Space Shuttle took 400 hours of labor to produce. The learning rate is 80%. How long will the twentieth tank take? Problem 2: An operation has a 90% learning curve and the first unit produced took 28 minutes. The labor cost is \$20 per hour. (a) How long will the second unit take? (b) How much should the second unit cost? Problem 3: Using the data from Problem 1, how long will it take to produce all 20 tanks?

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Unformatted text preview: ANSWERS Problem 1: From Table E.3 where N = 20 and an 80% learning rate: Learning curve coefficient C = .381 Y 20 = Y 1 C = .381 * 400 = 152.4 hours Problem 2: (a) T N + T 2 C = 28 * 0.9 = 25.2 minutes (b) Cost = (25.2 minutes/60 minutes) (\$20 per hour) = \$8.40 Problem 3: From Table E.3 where N = 20 and an 80% learning rate: Total time = 10.485 1 = = 400hr * 10.485 = 4,194 hours N T TC...
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modEpp - ANSWERS Problem 1 From Table E.3 where N = 20 and...

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