Harrys picture manufactures various picture frames. Each new employee takes 5 hours to make the first picture frame and 4 hours to make the second.

Required:

a. What is the learning-curve percentage, assuming the cumulative average method?

b. What us the learning-curve percentage, assuming the incremental unit-time method?

c. What is the total time needed to build 8 picture frames by a new employee using the cumulative average-time method?