Life Expectancy Narrative An Actuary Wanted to Develop a Model to Predict How

question 107

Essay

Life Expectancy Narrative
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 ( ), the cholesterol level ( ), and the number of points that the individual's blood pressure exceeded the recommended value ( ). A random sample of 40 individuals was selected. The computer output of the multiple regression model is shown below.
The regression equation is S = 9.47 R-Sq = 22.5%
Analysis of Variance
-Refer to Life Expectancy Narrative. Interpret the coefficient .

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Definitions:

Long-term Corporate Bonds

Debt securities issued by corporations with maturities longer than ten years, offering periodic interest payments and the return of principal at maturity.

Risk Level

The degree of uncertainty and potential financial loss involved in an investment decision.

Real Rate of Return

The annual percentage return realized on an investment, adjusted for changes in the price level due to inflation or other external effects.

Nominal Rate

The stated interest rate of a financial instrument, not adjusted for inflation or other factors that affect its true cost or yield.