ex1014: Toxic Effects of Copper and Zinc

In Sleuth3: Data Sets from Ramsey and Schafer's "Statistical Sleuth (3rd Ed)"

Toxic Effects of Copper and Zinc

Description

Researchers randomly allocated 25 beakers containing minnow larvae to receive one of 25 treatment combinations of 5 levels of zinc and 5 levels of copper.

Usage

ex1014

Format

A data frame with 25 observations on the following 3 variables.

Copper

amount of copper received (in ppm)

Zinc

amount of zinc received (in ppm)

Protein

protein in minnow larvae exposed to copper and zinc (\mug/larva)

Source

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

References

Ryan, D.A., Hubert, J.J., Carter, E.M., Sprague, J.B. and Parrott, J. (1992). A Reduced-Rank Multivariate Regression Approach to Aquatic Joint Toxicity Experiments, Biometrics 48(1): 155–162.

Examples

str(ex1014)

Sleuth3 documentation built on May 29, 2024, 2:56 a.m.