Life Expectancy an Actuary Wanted to Develop a Model to Predict

question 49

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} Is there enough evidence at the 5% significance level to infer that the cholesterol level and the age at death are negatively linearly related?

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Definitions:

Supernatural Forces

Supernatural forces refer to entities or powers that are beyond scientific understanding or the laws of nature, often involved in religious or spiritual belief systems.

Shaman

A person regarded as having access to, and influence in, the world of good and evil spirits, typically among indigenous peoples, who uses trance states, rituals, and healings.

Medicine Man

A medicine man is a traditional healer and spiritual leader in various Indigenous cultures, often using herbal remedies and spiritual practices.

Psychosomatic Complaints

Symptoms of a physical illness or condition that are influenced or aggravated by the mental or emotional state of the person.