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A sample of 250 adults tried the new multigrain cereal Wow! A total of 187 rated it as excellent. In a sample of 100 children,66 rated it as excellent. Using the 0.1 significance level,the researcher wishes to show that adults like the cereal better than children. What test statistic should we use to compare the ratings of adults and children?
Competition
A biological interaction where organisms vie for the same resources, such as food or habitat, in an ecosystem.
Symbiosis
A close, long-term interaction between two different biological species, which may be mutualistic, commensalistic, or parasitic.
Batesian Mimicry
A type of mimicry in which a non-threatening species develops similar warning signals to those of a dangerous species to avoid predation.
Müllerian Mimicry
A form of biological mimicry where two or more harmful species, usually within the same family, evolve to look alike.
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