Cicadas as fertilizer? Every 17 years, swarms of cicadas emerge from the groundin the
Chapter 0, Problem 15.48(choose chapter or problem)
Cicadas as fertilizer? Every 17 years, swarms of cicadas emerge from the groundin the eastern United States, live for about six weeks, then die. There are so manycicadas that their dead bodies can serve as fertilizer. In an experiment, aresearcher added cicadas under some plants in a natural plot of bellflowers on theforest floor, leaving other plants undisturbed. In this experiment,cicada-supplemented bellflowers from a natural field population produced foliagewith 12% greater nitrogen content relative to controls (P = 0.031).6 Acolleague who knows no statistics says that an increase of 12% isnt a lotmaybeits just an accident due to natural variation among the plants. Explain in simplelanguage how P = 0.031 answers this objection.
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