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Exam 22: Extension 7: Learning Curves

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Question 21

True/False

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If we have never made the first unit but only think we know how much the labor time will be, we cannot draw a learning curve.

A) True
B) False

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Question 22

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How long would a job with a 70 percent learning curve and a time of 20 hours for the first unit require (approximately, in hours) for the third unit?

A) 14.1
B) 11.5
C) 10.0
D) 7.8
E) 4.3

F) A) and B)
G) None of the above

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Question 23

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Unit times for a job exhibit a learning effect.If the 2^nd unit took 30 hours, and the 4^th unit took 21 hours, roughly how many hours would you estimate the 3^rd unit took?

If an 80% curve is appropriate for a task and the first unit takes ten hours, the average time for the first two units would be eight hours.

When are learning curves most relevant to managerial decision making in mass production settings?

Approximately how long will it take to produce the 25^th through the 30^th units?

A job is expected to have a 70 percent learning curve.The first unit has been completed in 20 hours.Accordingly, the second unit can be expected to take approximately how many hours?

The learning curve is a basic tool for mass production type activities because it can deal with large volumes of output.

If a contract for 30 units is canceled after the first 20 units, approximately how much of the expected total direct labor will have been expended to that point?

An 80 percent learning curve means that with each doubling of repetitions there will be a 20 percent decrease in time per unit.

A learning percentage of 95% indicates greater learning than a percentage of 90%.

A job will have a learning rate of 75 percent.If the 3^rd unit requires 10 hours, the 12^th unit should require about this many hours:

Approximately how long did it take to produce the first four units?

Which unit, if any, will require approximately one-half the time of the first unit?

A learning rate of 98% implies an exceptionally rapid rate of improvement.

Learning curves are mostly relevant for complex, new activities that have not been done often.

Assembly of a model airplane has a learning curve of 80 percent.The estimated time to assemble a second identical model airplane is 40 hours.Determine approximately how much time will be required for: (A) the eighth unit (B) the first ten units

When the task is fairly complex and has a longer duration, it will take a larger number of repetitions before improvement is observed.

The 3^rd unit of a ten-unit job required 7.3 hours to complete.The 4^th unit has been worked on for two hours, but it is not yet finished.Estimate the remaining amount of time that will be needed to finish this ten-unit job if the work has an 80% learning curve.

The fact that human activities typically improve when they are done on a repetitive basis is described by a/an: