🚀 go-pugleaf

Well I was lookig for a screw driver and I found my little stats
slide rule device that I had mentioned previously. On one side of
the slide rule "Test Indicator-Association Tests" which has
three levels of measurment: nomimnal, ordinal and interval. For
the other side is "Test Indicator--Difference Tests"  I don't
know if this card is still available but here is the address on it
for those who expressed an interest:
          SDR, Inc.
          2251 Perimeter Park Drive
          Atlanta, Georgia 30341
          (404) 451-5100
This is  amarket research company I think. BTW, under tests for
tests for association (nominal level) there is reference to "MNA"
procedure--any dieas as to what MNA is?
Richard Hinton