MOUT3. Ophthalmic lens is used in optical device to enhance vision addressing the visual needs of theindividual wearer. Two different polishing solutions can be used for polishing the ophthalmiclenses. 350 lenses were polished using the first polishing-solution, and of this number, 294had no polishing-induced defects. Another 400 lenses were polished using the secondpolishing solution, and 74 lenses had polishing-induced defects.i.Construct a 95% confidence interval on the difference of the proportion polishing-induced defects between the first and second polishing solutions.M 6 UTMii.UTMBased on the result in part (1), is there any indication that both types of polishingsolutions have different effect on the ophthalmic lens? Justify your answer.UTMOUTLOOUTME

The provided information is n1=350x1=294n2=400x2=74The sample proportions are…

Answered: 3. Ophthalmic lens is used in optical…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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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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