A) Is this sample sufficient to conclude that the eyes -spot have significant influence on the birds behaviors? Use a two- Tailed test with α=.05 Compute the estimated Cohen’s d to measure the size of the treatments effects. Construct the 90%confidence interval to estimate the mean amount of time spend on the plain side for the population of birds.
Many animals, including humans, tend to avoid direct eye contact and even pattern that look like eyes. Some insects, including months, have involved eye-spot pattern in their wings to help ward off predators. Scalfe (1976)reports a study examining how eyes spot patterns effect the behavior of birds. In the study birds were tested in a box with two chambers and were free to move from one chamber to another. In one chamber, two large eyes spot were painted on one wall. The other chamber to another. The researcher recorded the amount of time each bird spend in the plain chamber during a 60-minutes session. Suppose the study produced a
- A) Is this sample sufficient to conclude that the eyes -spot have significant influence on the birds behaviors? Use a two- Tailed test with α=.05
- Compute the estimated Cohen’s d to measure the size of the treatments effects.
- Construct the 90%confidence
interval to estimate the mean amount of time spend on the plain side for the population of birds.
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