Select options for Box-Cox Transformation

Stat > Control Charts > Box-Cox Transformation > Options

Specify a value for λ and a location to store the transformed data.

Optimal or rounded λ
Minitab estimates the optimal value for λ and also reports the nearest rounded value if a rounded value is appropriate.
Other (enter a value between -5 and 5)
Enter a value for λ.
Store transformed data in
Enter a column in the worksheet to have Minitab store the transformed data.