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

question 19

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.

-Does it appear from your graphs above that the device helps the MS sufferers in thestair-climbing test?
Explain your reasoning in a few sentences.

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Definitions:

Production Isoquants

Curves that represent combinations of various inputs that result in the same level of output, used in the analysis of production technology.

Marginal Product

The additional output that is produced by employing one more unit of a particular input, keeping all other inputs constant.

Machines

Mechanical or electrical devices that perform specific tasks or assist in completing work more efficiently.

Labor

Labor represents the human effort, both physical and mental, used in the production of goods and services.