It Has Been Hypothesized That Overall Academic Success for College

question 101

Essay

It has been hypothesized that overall academic success for college freshmen as measured by grade point average (GPA) is a function of IQ scores, X₁, hours spent studying each week, X₂, and one's high school average, X₃. Suppose the regression equation is . The multiple standard error is 6.313 and R² = 0.826.
What is the predicted GPA for a student with an IQ of 108, 32 hours spent studying per week, and a high school average of 82?

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Definitions:

Fixed Cost

A cost that remains constant, in total, regardless of changes in the level of activity within the relevant range. If a fixed cost is expressed on a per unit basis, it varies inversely with the level of activity.

Margin of Safety Percentage

A metric that measures how much sales can drop before a business reaches its break-even point, typically expressed as a percentage.

Variable Expenses

Costs that vary directly with the level of production or business activity.

Contribution Margin

The amount by which sales revenue exceeds variable costs. It is used to cover fixed costs and generate profit.