Life Expectancy an Actuary Wanted to Develop a Model to Predict

question 118

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} Interpret the coefficient b₂.

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Definitions:

Sexual Mores

The accepted traditional customs and practices regarding sexuality and sexual relationships within a society.

The Sheik

A title in Arab cultures historically referring to a leader in a tribe but can also be used in a broader sense to denote a ruler or noble.

Foreign Policy

A government's strategy in dealing with other nations, reflecting its interests abroad in terms of diplomacy, military, and economic measures.

Race Relations

The interactions between people of different racial backgrounds, including the social, political, and economic dynamics that are influenced by racial identity.