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Description:

Data from an experiment to test whether exposure to mites protects against Wilt Disease in cotton plants.

Variables:

A data frame with 47 observations on the following variables.

• treatment a factor with levels mites and no mites

• outcome a factor with levels wilt and no wilt

Details

Researchers suspected that attack of a plant by one organism induced resistance to subsequent attack by a different organism. Individually potted cotton plants were randomly allocated to two groups: infestation by spider mites or no infestation. After two weeks the mites were dutifully removed by a conscientious research assistant, and both groups were inoculated with Verticillium, a fungus that causes Wilt disease. More information can be found at https://www.causeweb.org/webinar/activity/2010-01/.

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References/Notes/Attributions:

Source

Statistics for the Life Sciences, Third Edition; Myra Samuels & Jeffrey Witmer (2003), page 409.

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