Test Difference between Two Proportions & Plot Confidence Intervals

August 11, 2011
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(This article was first published on theBioBucket*, and kindly contributed to R-bloggers)

..an illustrative example for testing proportions and presenting the results.

the data: number of indigenous and alien plant species with and without vegetative reproduction. Hypothesis: The proportion of species with vegetative reproduction is different between alien and indigenuos plant species.
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