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A Physician and President of a Tampa Health Maintenance Organization

question 48

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. Which of the following tests will be the most appropriate to find out if the primary specialty and the origin of medical school degree interact to affect the charges?

Definitions:

Paving Streets

The process of covering and constructing roads with materials like asphalt or concrete to create a smooth, durable surface for vehicles and pedestrians.

Property Value

The monetary worth that is assigned to a property, based on factors such as market conditions, location, and the state of the property.

Creditor Beneficiary

A third party that benefits from a contract made between two other parties, wherein the promisee's intention is to provide a benefit to the creditor beneficiary.

Intended Beneficiary

An individual or entity that is not a direct party to a contract but stands to benefit from its performance.