A researcher found that 54 out of 66 randomly selected trees in an arboretum in northern Ohio

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A researcher found that 54 out of 66 randomly selected trees in an arboretum in northern Ohio were native species. This compared to 42 out of 72 randomly chosen trees in "managed" land in the same general area. Is there significant evidence of a difference in proportions? If so, how strong is that evidence?
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Statistics For The Life Sciences

ISBN: 9780321989581

5th Edition

Authors: Myra Samuels, Jeffrey Witmer, Andrew Schaffner

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