Life Expectancy an Actuary Wanted to Develop a Model to Predict

question 26

Essay

Life Expectancy
An actuary wanted to develop a model to predict how long individuals will live.After consulting a number of physicians,she collected the age at death (y),the average number of hours of exercise per week (x₁),the cholesterol level (x₂),and the number of points that the individual's blood pressure exceeded the recommended value (x₃).A random sample of 40 individuals was selected.The computer output of the multiple regression model is shown below. THE REGRESSION EQUATION IS y = 55.8 + 1.79x₁− 0.021x₂− 0.061x₃ ​ S = 9.47 ​ R−Sq = 22.5% ANALYSIS OF VARIANCE ​ ​
-{Life Expectancy Narrative} What is the adjusted coefficient of determination in this situation? What does this statistic tell you?

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Definitions:

Relay Piston

A relay piston is part of an automatic transmission's hydraulic system, used to amplify fluid pressure for shifting gears.

Secondary Circuit

An electrical circuit that receives power from a transformer or another circuit rather than directly from a power source, used in various electronic devices.

Low Pressure Warning

An alert system in vehicles, especially those with air brakes, that activates to indicate insufficient air pressure in the system, signaling potential brake failure.

Actuation Pressure

The minimum pressure required to operate or move a hydraulic or pneumatic component.