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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?
Presenteeism
The phenomenon of employees coming to work despite being ill or unwell, often leading to decreased productivity and potential spread of illness.
Mindfulness
Achieving a psychological state by centering awareness on the immediate moment, while peacefully accepting and recognizing emotions, thought patterns, and bodily feelings.
Stressful Events
Situations or occurrences that cause psychological strain or tension, often requiring an individual to adapt or respond.
Mindfulness
A mental state achieved by focusing one’s awareness on the present moment, while calmly acknowledging and accepting one's feelings, thoughts, and bodily sensations.
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