Many animals, including humans, tend to avoid direct eye contact and even patterns that look like eyes.
Question:
a. Is this sample sufficient to conclude that the eyespots have a significant influence on the birds' behavior? Use a two-tailed test with α = .05.
b. Compute the estimated Cohen's d to measure the size of the treatment effect.
c. Construct the 95% confidence interval to estimate the mean amount of time spent on the plain side for the population of birds.
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Related Book For
Statistics For The Behavioral Sciences
ISBN: 9781111830991
9th Edition
Authors: Frederick J Gravetter, Larry B. Wallnau
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