1. . Suppose the first unit required 800 hours and the second unit required only 680. Which of the following times for the fourth unit would be

1.      . Suppose the first unit required 800 hours and the second unit required only 680. Which of the following times for the fourth unit would be consistent with a true learning curve scenario?

2.      A job is expected to have a learning curve of 90 percent. The third unit required 16 hours. The 12 th unit should take approximately how many hours?