ex0722

As part of a study of the effects of predatory intertidal crab species
  on snail populations, researchers measured the mean closing forces and
  the propdus heights of the claws on several crabs of three species.

datasets

Data sets from Ramsey, F.L. and Schafer, D.W. (2013), "The
    Statistical Sleuth: A Course in Methods of Data Analysis (3rd
    ed)", Cengage Learning. 

Berwin Turlach

Sleuth3

Data Sets from Ramsey and Schafer's "Statistical Sleuth (3rd
        Ed)"

ex0722 function

Ramsey, F.L. and Schafer, D.W. (2013). <em>The Statistical Sleuth: A
    Course in Methods of Data Analysis (3rd ed)</em>, Cengage Learning.

ex0722: Crab Claw Size and Force

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