A Set of Data Consists of the Number of Years $\hat { y } = 31.6 + 10.9 x$

question 4

Essay

A set of data consists of the number of years that applicants for foreign service jobs have studied German and the grades that they received on a proficiency test. The following regression equation is obtained: $\hat { y } = 31.6 + 10.9 x$ , where $x$ represents the number of years of study and $y$ represents the grade on the test. Identify the predictor and response variables.

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Definitions:

Single Amount

A lump-sum value; referring to a financial transaction or an accounting entry that involves only one amount rather than multiple payments or amounts.

Concept

An abstract idea or a general notion representing something, often used as a foundational principle or theory.

Semiannual Deposits

Payments or savings contributions made twice a year into a particular account or investment.

Annual Interest

The amount of interest due over the course of a year as a result of borrowing funds or investing, expressed typically as a percentage of the principal.