Test for Normal Distribution
- Thread starter tja26
- Start date
The following link is a pdf document that discusses how to construct a normal probability plot in Excel.
http://www.decisionsciences.org/decisionline/Vol29/29_1/class_29_1.pdf
Just keep in mind that you can't "prove" or say "yes" or "no" if the question is asked: "Is the data normally distributed?"
What you can say is whether or not there is enough evidence, either visually or through a test, to say that the sample data "probably did not" come from a normally distributed population.
You might also consider a relatively inexpensive Excel add-on like Analyse-It that can do some simple procedures, such as tests for normality.
http://www.decisionsciences.org/decisionline/Vol29/29_1/class_29_1.pdf
Just keep in mind that you can't "prove" or say "yes" or "no" if the question is asked: "Is the data normally distributed?"
What you can say is whether or not there is enough evidence, either visually or through a test, to say that the sample data "probably did not" come from a normally distributed population.
You might also consider a relatively inexpensive Excel add-on like Analyse-It that can do some simple procedures, such as tests for normality.