Author Question: A certain HMO is attempting to show the benefits of managed care to an insurance company. The HMO ... (Read 276 times)

ishan · **on:** Jan 16, 2020

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.
◦ H₀: μ_C = μ_E = μ_I = 0
◦ H₀: p₁ = p₂ = p₃
◦ H₀: β₁ = β₂ = β₃ = 0
◦ H₀: μ_C = μ_E = μ_I

akudia · **Reply #1 on:** Jan 16, 2020

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