THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 177

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
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:
= 55.8 + 1.79x₁ - 0.021x₂ - 0.016x₃

S = 9.47 R-Sq = 22.5%
ANALYSIS OF VARIANCE

-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?

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Definitions:

Race

A socially constructed categorization of humans based on physical characteristics, ancestry, historical affiliations, and cultural elements.

Evidence

Information used to support or refute an argument or claim, often presented in legal contexts to prove or disprove the elements of a case.

Passing

Presenting yourself as a member of a different group than the stigmatized group to which you belong.

Hegemony

Term developed by Antonio Gramsci to describe the cultural aspects of social control, whereby the ideas of the dominant group are accepted by all.