1. If the learning phenomenon applies to all human activity, why isn't the effect noticeable in mass production or high-volume assembly work?

2. Under what circumstances might a manager prefer a learning rate of approximately 100 percent (i.e., no "learning")?

3. What would a learning percentage of 120 percent imply?

4. Explain how an increase in indirect labor cost can contribute to a decrease in direct labor cost per unit.

5. List the kinds of factors that create the learning effect.

6. Explain how changes in a process, once it is under way, can cause scallops in a learning curve.

7. Name some areas in which learning curves are useful.

8. What factors might cause a learning curve to tip up toward the end of a job?

9. "Users of learning curves sometimes fail to include carryover effects; previous experience with similar activities can reduce initial activity times, although it should be noted that the learn- ing rate remains the same." What is the implication of this item from the list of cautions and criticisms?