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Multiple sclerosis (MS) is an autoimmune disease that affects the brain and spinal cord.
MS affects women more than men, and is most commonly diagnosed between the ages of 20 and 40. MS sufferers typically have problems of coordination and walking. The standard care for some sufferers is a plastic device affixed to the lower leg and ankle. In a recent test of this device, volunteers with MS were randomly assigned to two experimental groups. The volunteers in one group used the plastic device; the volunteers in the other group did not use the plastic device. Each individual was timed as he or she climbed a set of stairs. Times, measured without the device (ND) and with the device (D), are presented below.
-Construct a back-to-back stem-and-leaf display that will allow comparison of thetimes on the stair-climbing task.
Point System
A method used for various purposes including immigration, where individuals are assessed based on certain criteria and awarded points to determine their eligibility or ranking.
Language Proficiency
The ability of an individual to speak, understand, read, and write in a language effectively and efficiently.
Protected Persons
Individuals who have been granted legal protection by a government or international body, typically due to threats to their safety or human rights.
Refugee Claimants
Individuals who seek refugee protection in a country other than their own, awaiting a decision on their claim.
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