What are the task of an health administrator?

What are the task of an health administrator?
"Q: What are the task(s) of a health administrator?"
"A: The specific tasks of a health care administrator vary depending on where he or she works. Generally, a Health Administrator typically researches, creates and implements the policies for which the faculty must follow. In addition to implementing policies, he or she also supervises, plans and coordinates several different health care facilities.

In 2009, the average income for a health administrator was $90,000.

Seems low.