The MINITAB computer language makes it possible to easily transform data. With the data already set in column 1, the commands

will place the natural logarithm loge, x in C2, ˆšx in C3, and x1/14 in C4. Normal-scores plots can then be constructed as in Exercise 6.55.
Refer to the lightning data in Exercise 2.121 of Chapter 2. Make a normal-scores plot of the
(a) Original observations.
(b) Fourth root of the original observations.
(c) Comment on the quality of the approximation by a normal distribution in both cases.

Dialog box: Calc > Calculator. Type C2 in Store. Type LOGE(CI) in Expression. Click OK. Calc Calculator. Type C3 in Store. Type SQRT(C1) in Expression. Click OK. Calc Calculator. Type C4 in Store. Type SQRT(C3) in Expression. Click OK.