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.

Question

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.

Quizplus · Accepted Answer

The Answer of 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.

A Certain HMO Is Attempting to Show the Benefits of Managed