Incomes of Physicians an Economist Is Analyzing the Incomes of Physicians (General

question 106

Essay

Incomes of Physicians
An economist is analyzing the incomes of physicians (general practitioners,surgeons,and psychiatrists).He realizes that an important factor is the number of years of experience.However,he wants to know if there are differences among the three professional groups.He takes a random sample of 125 physicians and estimates the multiple regression model y = β₀ + β₁x₁ + β₂x₂ + β₃x₃ + ε,where y = annual income (in $1,000),x₁ = years of experience,x₂ = 1 if physician and 0 if not,and x₃ = 1 if surgeons and 0 if not.The computer output is shown below. THE REGRESSION EQUATION IS y = 71.65 + 2.07x₁ + 10.16x₂− 7.44x₃ S = 42.6 R−Sq = 30.9% ANALYSIS OF VARIANCE ​ ​
-{Incomes of Physicians Narrative} Estimate the annual income for a surgeon with 15 years of experience.

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Definitions:

Consumer Surplus

The gap between the aggregate sum consumers are ready and can afford to pay for a good or service and the aggregate sum they actually spend.

Uses of Markets

The functions markets serve in allowing buyers and sellers to exchange goods, services, and information, facilitating the allocation of resources.

Quantity Supplied

The amount of a good or service that producers are willing and able to sell at a given price.

Increase in Demand

A situation where more of a good or service is desired by consumers at all price levels, shifting the demand curve rightward.