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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 timed as they walked across a room.
Times, measured without the device (ND) and with the device (D), are presented below.
-Using appropriate statistical terminology, compare the center, shape, and spread oftimes on the walking task with and without the device.
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