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A Certain HMO Is Attempting to Show the Benefits of Managed

question 21

Multiple Choice

A certain HMO is attempting to show the benefits of managed health care to an insurance company. The HMO believes that certain types of doctors are more cost-effective than others. One
Theory is that both primary specialty and whether the physician is a foreign or USA medical school
Graduate are an important factors in measuring the cost-effectiveness of physicians. To investigate
This, the president obtained independent random samples of 40 HMO physicians, half foreign
Graduates and half USA graduates, from each of four primary specialties-General Practice (GP) ,
Internal Medicine (IM) , Pediatrics (PED) , and Family Physician (FP) -and recorded the total
Per-member, per-month charges for each. Thus, information on charges were obtained for a total
Of n = 160 doctors. The ANOVA results are summarized in the following table. $A certain HMO is attempting to show the benefits of managed health care to an insurance company. The HMO believes that certain types of doctors are more cost-effective than others. One Theory is that both primary specialty and whether the physician is a foreign or USA medical school Graduate are an important factors in measuring the cost-effectiveness of physicians. To investigate This, the president obtained independent random samples of 40 HMO physicians, half foreign Graduates and half USA graduates, from each of four primary specialties-General Practice (GP) , Internal Medicine (IM) , Pediatrics (PED) , and Family Physician (FP) -and recorded the total Per-member, per-month charges for each. Thus, information on charges were obtained for a total Of n = 160 doctors. The ANOVA results are summarized in the following table. Interpret the test for interaction shown in the ANOVA table. Use \alpha = 0.025 . A) There is insufficient evidence at the \alpha = 0.025 level to say that primary specialty and medical school interact. B) There is sufficient evidence at the \alpha = 0.025 level to say that primary specialty and medical school do not interact. C) There is sufficient evidence at the \alpha = 0.025 level to say that primary specialty and medical school interact. D) It is impossible to make conclusions about primary specialty and medical school interaction based on the given information.$
Interpret the test for interaction shown in the ANOVA table. Use $\alpha = 0.025$ .

Definitions:

Cohabitation

Cohabitation is the state of living together in a romantic relationship without being legally married.

Trial Marriage Cohabitation

An arrangement where two people live together to test their compatibility as a couple before deciding to get married.

Premarital Cohabitation

The act of living together in a romantic relationship without being married, prior to marriage.

Substitute Marriage Cohabitation

Living together in a relationship similar to marriage without legally getting married.