THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 95

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

-Interpret the coefficient b₃.

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Definitions:

Exclusively Marine

Referring to organisms or features that are found only in the oceanic environment, not in fresh water or on land.

Chilopods

A class of arthropods known as centipedes, characterized by elongated bodies with a pair of legs per segmented body part.

Arachnids

A class of joint-legged invertebrate animals in the subphylum Chelicerata, including spiders, scorpions, ticks, and mites.

Phylogeny

The evolutionary history and relationship among species or groups of organisms, often illustrated as a tree-like diagram showing divergent lines of descent.