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 ( x 1), the cholesterol level ( x 2), and the number of points that the individual's blood pressure exceeded the recommended value ( x 3). 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 + 1.79 x 1 - 0.021 x 2 - 0.061 x 3 
S = 9.47 R - Sq = 22.5%
ANALYSIS OF VARIANCE 
{Life Expectancy Narrative} Is there enough evidence at the 1% significance level to infer that the average number of hours of exercise per week and the age at death are linearly related?
Definitions:
Adult Learning Cycle
A concept in education theory describing the continuous process of learning that adults engage in, involving experiencing, reflecting, thinking, and acting.
Financial Resources
Monetary assets or capital available to an individual or organization for spending or investment.
Professional Group
An organization or association of individuals in the same profession, aimed at advancing their collective interests and enhancing their field.
Internship
An advanced student or graduate program, usually in a professional field, that provides students with supervised practical experience.
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