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A Physician and President of a Tampa Health Maintenance Organization

question 6

Multiple Choice

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. 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 variable which the president believes influences total charges per member per month is whether the doctor is a foreign or US medical school graduate. 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 president has already found out that specialty types and origin of the medical degree do not interact to affect the charges. He has also found out special types do have an impact on average charges. Which of the following tests will be the most appropriate to find out which primary specialty has the highest charges?

Definitions:

Assembly Line

A manufacturing process in which parts are added to a product in a sequential manner to create a finished product more efficiently.

Direct Labor

The wages paid to workers who are directly involved in the production of goods or the delivery of services.

Factory Supplies

Materials and items used in a factory that do not directly go into a finished product but are necessary for manufacturing processes.

Factory Overhead

All indirect costs associated with the manufacturing process, including but not limited to utilities, maintenance, and management salaries, excluding direct labor and materials.