Fifty patients suffering from knee pain have volunteeredto participate in an experiment to examine the effects ofpain relief medication. Half will be assigned to take 400mg of the pain reliever every six hours, and the other halfto take 200 mg every 3 hours. The patients will reporttheir pain levels on a 1–10 scale at the beginning of theexperiment and again after 8 days on the medication.a) Define the experimental units and the response variable.b) What are the treatments? c) Describe an appropriate method to assign the volun-teers to treatments. d) An alternate design could include a control groupwho take a placebo. Describe an advantage of addinga control group.

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Q: A sample of n= 64 scores is selected from a population with u = 60 and o= 10. If the sample mean is…

A: From the provided information, Mean (µ) = 60 Standard deviation (σ) = 10

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A: As given :  t(30) = 1.12 p = 0.34 η2 = 0.001  It is asked to interpret the effect size here.

Q: A study published by Babcock and Marks (2010) showed that the average full-time U.S. college student…

A: μ = 14 σ = 4.8 M = 12.5  n = 64

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.