THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 224

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 b₂.

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Definitions:

Representativeness Heuristic

A cognitive shortcut that involves judging the probability of an event by how much it resembles what we consider to be a typical example of that event.

Availability Heuristic

A quick-thinking process that depends on the first examples that pop into someone's head when they are considering a particular subject, idea, approach, or choice.

Relative Comparisons

The act of evaluating something in relation to another similar item.

Availability Heuristic

A cognitive shortcut that relies on the immediate examples that come to a person’s mind when evaluating a specific topic, concept, method or decision.