Learning Curves

 

Basic formula

 

 

Y = cumulative average time (or cost)

‘a = time (or cost) for the first unit or batch

X = cumulative production or batches completed

‘b = the learning exponent

 

 

using logarithms

 

 

Number of batches given the cumulative average time

 

 

 

Incremental time between two batches

 

 

 

High low method