Since MegaStat is propiretary software provided with McGraw-Hill Business
Statistics textbook(s), your best bet would be to ask your teacher or read
the textbook that you got the sofware with. If you find the text unclear, a
Google search for "MegaStat VIF" pulls up links to some powerpoint lecture
slides that may help. You may also find useful information at http://en.wikipedia.org/wiki/Variance_inflation_factor
