Many animals, including humans, tend to avoid direct eye contact and even patterns that look like eyes. Some insects, including moths, have evolved eye-spot patterns on their wings to help ward off predators. Scaife (1976) reports a study examining how eye-spot patterns affect the behavior of birds. In the study, the birds were tested in a box with two chambers and were free to move from one chamber to another. In one chamber, two large eye-spots were painted on one wall. The other chamber had plain walls. The researcher recorded the amount of time each bird spent in the plain chamber during a 60-minute session. Suppose the study produced a mean of M = 37 minutes in the plain chamber with SS = 288 for a sample of n = 9 birds. (Note: If the eye-spots have no effect, then the birds should spend an average of
μ = 30 minutes in each chamber.)
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.
Exemplary Academic Writing Service
At TheQuizlet.com, you are guaranteed of quality service from our professional writers. We maintain consistent communication with customers after placing an order to avoid missing anything that may compromise the quality of delivered work.
Our hiring process is rigorous to maintain the desired quality that has become the core of our business. We expose potential writers to an uncompromising selection process that enables TheQuizlet to pick the best out of the rest. TheQuizlet boasts of a competent team of writers, editors, and professors who work towards accomplishing your goals.
TheQuizlet has an in-house plagiarism software that lowers the probability of delivering plagiarized papers to our clients. Referencing is guided by the format specified by a customer when placing an order. Our writers are conversant with all referencing formats that include APA, MLA, Chicago, Harvard, and Vancouver among others.
24/7 Customer Support
We understand the importance of effective communication and as such, TheQuizlet has a dedicated customer support department that responds to all client needs. You can easily contact our team through a chat window at the bottom left corner. Additionally, clients can reach us through support’s email or a telephone number available on our contact page. Feel free to contact us at any time and our team of experts will solve all your problems.
Swift Delivery and 100% Money-back Guarantee
When placing an order, ensure that you specify the correct deadline to help our writers work around the provided timeline. At TheQuizlet, we deliver our tasks before the projected deadline to give time for the customer to proofread the work before submission. In the event we cannot deliver a paper on time, we initiate contact with the client to renegotiate a new deadline.
Unlimited and Free Revisions
We urge all our customers to request for a revision whenever they identify a need to amend the paper. Since we understand your concerns, TheQuizlet.com does not charge for revisions. Nonetheless, we encourage customers to be genuine when requesting for revisions.
Try it now!
How it works?
Follow these simple steps to get your paper done
Place your order
Fill in the order form and provide all details of your assignment.
Proceed with the payment
Choose the payment system that suits you most.
Receive the final file
Once your paper is ready, we will email it to you.
TheQuizlet is a one-stop shop for all your writing needs. We tackle each customer’s needs differently to improve the quality of outcomes and meet your expectations.
TheQuizlet is committed to delivering quality work on time to ensure our clients get the value for their money.
Admission Essays and Professional Writing
Admission essays are personal, as opposed to other papers. For this reason, our team will request for any information that will enable them to deliver quality work, which allows you to convince the admissions board on why you should be granted the application.
Editing and Proofreading
Our team comprises of qualified researchers, writers, and editors who go through the different papers before delivering them to our clients. Whether your paper is being written from scratch or you want it to be edited, you can trust TheQuizlet for all your needs.
After receiving the final draft, you can request for a revision to incorporate various changes that are aligned with your expectations. All our papers are written in line with the latest writing standards.