Normality transformations in Minitab

#1
I have some statistical data, with 4 - 5 columns, where the data fails a normality test in two columns. I need to do some statistical tests in Minitab, but need the data normal. How do you go about finding a comon transformatin in Minitab? I know how to do this in JMP, but now need to use Minitab.
 

JohnM

TS Contributor
#2
I see a lot of posts about this, and in my opinion, people worry way too much about violations of the normality assumption.

Many statistical tests are very robust and are hardly affected at all - if you are working with a very large sample size, it can be very easy to "fail" a normality test, by a very small, inconsequential amount.

If the normality plot looks "close enough," then you're probably OK.