Using regression analysis, we now show that this learning curve data is consistent with the general learning
model. The general form of the learning model is Y aX b where a the time required for the first unit and
b the learning index. Using a log transform for Y, the general learning model can be shown in the equivalent
log-linear form (see footnote 13 in Appendix A): log( Y ) log( a ) b log( X ). The log transform is
available in Excel in “Insert Function” under the Formulas tab.