Multiple Sclerosis (MS) Is an Autoimmune Disease That Affects the Brain

question 7

Essay

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.


-Calculate the values of these numerical summaries for the stair-climbing task withoutthe device: Note: The table above is reproduced below so that you need not flip back and forth.

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Definitions:

Endowment Contribution

A donation made to an institution, with the stipulation that the principal amount must be maintained intact while the investment income can be used for organizational purposes.

Deferral Method

An accounting practice that postpones the recognition of revenue or expenses to a future period, rather than recording them in the period in which they are incurred.

Restricted Revenue

Funds received by an organization that are subject to limitations or conditions on how they can be used, often tied to specific projects or goals.

Encumbrance System

A method or system for tracking claims, liens, or restrictions on property to ensure clear title or usage rights.