A Manager Is Trying to Estimate the Appropriate Learning Curve

Multiple Choice

A manager is trying to estimate the appropriate learning curve for a certain job. The manager notes that the first four units had a total time of 30 minutes. Which learning curve would yield approximately this result if the first unit took 9 minutes?

A) 0.70
B) 0.75
C) 0.80
D) 0.85
E) 0.90