On RainTite Window's manual assembly line, a new employee can usually assemble their first window unit in 30 minutes. Management assumes a 90 percent learning rate.
a. How long should a new employee take to assemble their second window if management is correct in their assumption? How long should the 16th window take?
b. On RainTite's semi-automated line, a new employee takes 45 minutes to assemble their first window; however, the learning rate is 75 percent. At how many windows produced will the semi-automated line's employee take less time to produce a window than an employee on the manual line?