ex0524

Previous studies suggest that vegetarians may not receive enough zinc
  in their diets and the zinc requirement is especially important during
  pregnancy.  Twenty-three women were monitored: twelve vegetarians who
  were pregnant, six nonvegetarians who were pregnant, and five
  vegetarians who were not pregnant.  Is there any evidence that
  pregnant vegetarians tend to have lower zinc levels than pregnant
  nonvegetarians?

datasets

Data sets from Ramsey, F.L. and Schafer, D.W. (2002), "The
        Statistical Sleuth: A Course in Methods of Data Analysis (2nd
        ed)" Duxbury.

Berwin Turlach

Sleuth2

Data sets from Ramsey and Schafer's "Statistical Sleuth (2nd
        ed)"

ex0524 function

Ramsey, F.L. and Schafer, D.W. (2002). <em>The Statistical Sleuth: A
    Course in Methods of Data Analysis (2nd ed)</em>, Duxbury.

ex0524: Vegetarians and Zinc: An Observational Study

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