Researchers want to test a new hand exercise plan forarthritis patients to see if they have improved flexibility.They recruited 110 patients with arthritis in their handsand randomly assigned them to one of two treatmentgroups: group 1 took their regular medicine and did thenew hand exercises; and group 2 only took medicine.After one month, 42 of the 55 in group 1 improved in theirflexibility, and 37 of the 55 in group 2 improved theirflexibility.Check the conditions for constructing a confidenceinterval for the difference in proportions.Random condition: V met10% condition:Large Counts condition:Are all the conditions for inference met?

Given in the question: Group 1: n1 = 55 x1 = Number of patients with arthritis in their hands…

Answered: Researchers want to test a new hand…

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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A random sample of n₁ = 261 people who live in a city were selected and 107 identified as a "dog person." A random sample of n2 = 107 people who live in a rural area were selected and 62 identified as a "dog person." Find the 99% confidence interval for the difference in the proportion of people that live in a city who identify as a "dog person" and the proportion of people that live in a rural area who identify as a "dog person." Round answers to to 4 decimal places. P1-P2< Question Help: Message instructor Submit Question
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Researchers want to test a new hand exercise plan for arthritis patients to see if they have improved flexibility. They recruited 110 patients with arthritis in their hands and randomly assigned them to one of two treatment groups: group i took their regular medicine and did the new hand exercises; and group 2 only took medicine. After one month, 42 of the 55 in group 1 improved in their flexibility, and 37 of the 55 in group 2 improved their flexibility. Based on the 95% confidence interval (-0.076, 0.258), is there convincing evidence of a difference in the proportion of patients like these who would show improvement in flexibility if they did the new hand exercises along with taking the medicine versus just taking the medicine? v to believe there va difference in the proportion of patients like these who would show improvement in flexibility if they did the new hand exercises along with taking the medicine versus just taking the medicine. Because v contained in the interval, there…
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