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:

Bond Interest

The periodic payment made to the holders of a bond, representing a fixed income for the bond's duration.

Bonds at Discount

Bonds issued for less than their face value, where the difference between the purchase price and the face value is the interest earned by the investor.

Journal Entries

These are records of financial transactions within a company's accounting system, ensuring all financial transactions are properly documented.

Bond Interest

The periodic payment made to bondholders as compensation for the investment, typically based on a fixed interest rate.