A certain HMO is attempting to show the benefits of managed

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 19 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 57 physicians). Identify the treatments for this experiment. the total per-member, per-month charge the 57 physicians the HMO the three certification groups: C, E, and I

Solution

Note that different TREATMENTS constitute different levels of a factor.

Here, the factor is the certification level, and it is THREE CERTIFICATION LEVELS.

Thus, the treatments here are OPTION D: The three certifications groups: C, E, I. [ANSWER, D]