A Certain HMO Is Attempting to Show the Benefits of Managed

question 39

Multiple Choice

A certain HMO is attempting to show the benefits of managed care to an insurance company. The HMO believes that certain types of doctors are more cost-effective than others. One theory is that certification level is an important factor in measuring the cost-effectiveness of physicians. To investigate this, the HMO obtained independent random samples of 25 physicians from each of the three certification levels-Board certified (C) ; Uncertified, board eligible (E) ; and Uncertified, board ineligible (I) -and recorded the total per-member, per-month charges for each (a total of 25 physicians) . In order to compare the mean charges for the three groups, the data will be subjected to an analysis of variance. Write the null hypothesis tested by the ANOVA.

• A) H0: μC = μE = μI
• B) H0: β1 = β2 = β3 = 0
• C) H0: μC = μE = μI = 0
• D)H0: p1 = p2 = p3

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Definitions:

Habituation

The decrease in response to a stimulus on repeated applications; this is the simplest kind of learning.

Habituated

The process of becoming accustomed to a stimulus after repeated exposure, leading to a decrease in response.

Pavlov's Studies

Research conducted by Ivan Pavlov that demonstrated classical conditioning, where dogs learned to associate a neutral stimulus with food and respond to it as they would to the food.

Salivate

The production of saliva in the mouth, often as a reflexive response to the sight, smell, or thought of food.