You are looking at the residual vs. predicted y plot and notice that there is increasing variance. Using the Box-Cox Transformations tool in JMP, you see that the value of lambda is close to 0. Knowing these two facts, and with the help of the Ladder of Powers, select the appropriate method of data transformation below. a. Square the values of the Ys
b. No transformation is needed
c. Take the log of the Y values
d. Square root the values of the Ys