THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 31

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A professor investigated some of the factors that affect an individual student's final grade in his course.He proposed the multiple regression model Y = β₀ + β₁X₁ + β₂X₂ + β₃X₃ + ε ,where Y is the final mark (out of 100),X₁ is the number of lectures skipped,X₂ is the number of late assignments,and X₃ is the mid-term test mark (out of 100).The professor recorded the data for 50 randomly selected students.The computer output is shown below.
The regression equation is
= 41.6 - 3.18x₁ - 1.17x₂ + 0.63x₃.

S = 13.74 R-Sq = 30.0%
ANALYSIS OF VARIANCE

-What is the coefficient of determination? What does this statistic tell you?

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Definitions:

Woodworth

Robert S. Woodworth was an influential American psychologist known for his work in experimental psychology and the dynamic theory of motivation and personality.

Bodily Needs

Fundamental physiological requirements for human survival and well-being, such as the need for food, water, and sleep.

Metabolism

The chemical processes that occur within a living organism in order to maintain life, involving the conversion of food to energy, elimination of waste, and other bodily functions.

Reproduction

The biological process by which new individual organisms are produced, ensuring the continuation of a species.