Confidence the proportion of all shrubs of species

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Some shrubs have the useful ability to resprout from their roots after their tops are destroyed. Fire is a particular threat to shrubs in dry climates, as it can injure the roots as well as destroy the aboveground material. One study of resprouting took place in a dry area of Mexico. The investigation clipped the tops of samples of several species of shrubs. In some cases, they also applied a propane torch to the stumps to simulate a fire. Of 15 specimens of a particular species, 5 resprouted after fire. Estimate with 90% confidence the proportion of all shrubs of this species that will resprout after fire.

Reference no: EM132188499

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