T ransformations and reporting results. more problem 3.26. The Box-Cox Transformation.
more problem 3.26
Sometimes a transformation on the response fits the model better than the original response. A commonly used transformation raises the response to some power. Box and Cox (1964) formalized and described this family of power transformations. (From JMP Help menu).
The transformed response variables are then:
when lambda is not zero and is ln(Y) if zero, and where
is the geometric mean.
4 5723.0000 A
3 2941.7500 A
1 159.7500 B
5 10.7500 C
2 6.2500 C