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TABLE 11-11 A Physician and President of a Tampa Health Maintenance Organization

question 19

Multiple Choice

TABLE 11-11
A physician and president of a Tampa Health Maintenance Organization (HMO) are attempting to show the benefits of managed health care to an insurance company. The physician believes that certain types of doctors are more cost-effective than others. One theory is that primary specialty is an important factor in measuring the cost-effectiveness of physicians. To investigate this, the president obtained independent random samples of 20 HMO physicians from each of 4 primary specialtiesGeneral Practice (GP) , Internal Medicine (IM) , Pediatrics (PED) , and Family Physicians (FP) and recorded the total charges per member per month for each. A second factor which the president believes influences total charges per member per month is whether the doctor is a foreign or US medical school graduate. The president theorizes that foreign graduates will have higher mean charges than US graduates. To investigate this, the president also collected data on 20 foreign medical school graduates in each of the 4 primary specialty types described above. So information on charges for 40 doctors (20 foreign and 20 US medical school graduates) was obtained for each of the 4 specialties. The results for the ANOVA are summarized in the following table.
-Referring to Table 11-11, what was the total number of doctors included in the study?

Definitions:

Scope

The extent or range of view, work, or activity; the breadth of a project or operation.

Promoter

In a business context, a promoter is an individual or entity involved in organizing and starting a company, raising capital, and taking the necessary steps to establish it.

Unincorporated Business

A business structure without a separate legal entity from its owner, where the owner is personally responsible for the business's debts and obligations.

Specialized Equipment

Tools or machinery designed for a specific, often technical or industrial, purpose, necessitating particular skills for operation.