The manufacturing process at Lone Star Company (LSC) is following a 70% learning curve. More recently, the company produced four conveyors with the last one requiring 490 labor hours to complete (i.e., P4 = 490). LSC 2 has received an invitation to bid on an order of two additional conveyors. Based on the tables at the end of Chapter 11, what is the total amount of time required to make the fifth and the sixth conveyors?
[Hint: Try to find A first by recalling that each time the output level doubles (from 1 unit to 2 units, from 2 units to 4 units, etc.), the number of labor hours required to complete a task decreases to a fixed percentage of its previous time requirement.]