THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 187

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 5% significance level to infer that the cholesterol level and the age at death show a negative linear relationship?

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Definitions:

Organizational Identification

The psychological connection between an employee and their organization, influencing their sense of belonging and loyalty.

Work Motivation

The internal and external forces that influence an individual’s willingness to perform and engage in their job tasks.

Reward Dissatisfaction

A state of discontent experienced by employees due to perceived unfair compensation, benefits, or recognition in comparison to their efforts or performance.

Unionized Firm

A company where the workforce is organized into a union, which negotiates with the employer on matters such as wages, hours, and working conditions.