A Regression Analysis of Students' College Grade Point Averages (GPAs)

question 102

Multiple Choice

A regression analysis of students' college grade point averages (GPAs) and their high school GPAs found R² = 0.311. Which of these is true?
I. High school GPA accounts for 31.1% of college GPA.
II. 31.1% of college GPAs can be correctly predicted with this model.
III. 31.1% of the variance in college GPA can be accounted for by the model.

• A) I only
• B) None
• C) III only
• D) I and II
• E) II only

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Definitions:

Equivalent Unit

A metric in cost accounting that quantifies the effort invested in partially finished units by equating it to the output of completely finished units.

First-in

implies the method where the earliest goods produced or acquired are the first to be used or sold.

Materials

Inputs and supplies used in the production of goods or in the provision of services.

Completed Unit

A term used in manufacturing and production to describe a product that has finished all stages of the production process and is ready for sale.