The second unit of production took 9 hours.If the learning curve is 90% how long did the first unit take?
A)9 hours
B)10 hours
C)8.1 hours
D)8.5 hours
E)none of the above

Question

Quizplus · Accepted Answer

The learning curve formula is Tn = T1 * n^b, where Tn is the time for the nth unit, T1 is the time for the first unit, n is the unit number, and b is the learning curve exponent. For a 90% learning curve, b = log(0.9)/log(2). Given T2 = 9 hours, solve for T1: 9 = T1 * 2^b. Solving gives T1 = 10 hours.

The Second Unit of Production Took 9 Hours