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:

Drought Conditions

An extended period of deficient rainfall relative to the statistical multi-year average for a region, resulting in water scarcity that can affect agriculture, water supply, and ecosystems.

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The mean stock level held by a company over a certain period, calculated to understand inventory trends and management effectiveness.

Optimal Order Quantity

Optimal Order Quantity is the ideal amount of inventory a business should purchase to minimize costs while meeting demand without overstocking or understocking.

Economic Order Quantity

A formula used to determine the optimal order quantity that minimizes the total inventory holding costs and ordering costs.