The presence of predators has been hypothesized to induce changes in behavior an
ID: 47437 • Letter: T
Question
The presence of predators has been hypothesized to induce changes in behavior and morphology of prey. Consider the graph below comparing activity levels of snails reared either in the presence or absence of their crab predator. Analysis of variance (ANOVA) found that F1,10 = 6.12; and p = 0.043. Answer the following questions:
What is/are the independent variable(s)?
What is/are the dependent variable(s)?
The independent variable(s) is/are
The dependent variable(s) is/are
Which treatment would you consider to be the ?control??
What does the height of each bar represent, per group?
What is the null hypothesis for this experiment?
What is the probability of getting an F value of 6.12 if the null hypothesis is true?
Given the reported statistical results, would the null hypothesis be rejected with an ? = 0.05 or 0.01?
Given the reported statistical results, to what degree is the proposed ecological hypothesis supported?
60 40 2 20 0 Predator No predatorExplanation / Answer
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