THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 126

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 10% significance level to infer that the model is useful in predicting how long an individual will live?

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Definitions:

Lower Cost

A strategic advantage or objective involving reducing expenses to offer products or services at a competitive price point.

Marketing Plans

Structured strategies that outline the objectives, tactics, and measurement tools for achieving marketing goals within a specified timeframe.

Marketing Metrics

Quantitative measurements used to gauge and evaluate the effectiveness of marketing strategies and initiatives, such as return on investment (ROI), customer acquisition cost, and conversion rates.

Differentiation Focus

A business strategy that targets a specific market segment, offering unique features that appeal to its particular preferences or needs.