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

question 37

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 receive on a proficiency test. The following regression equation is obtained: $\hat { \mathrm { y } } = 31.6 + 10.9 \mathrm { x }$ , where $\mathrm { x }$ represents the number of years of study and y represents the grade on the test. What does the slope of the regression line represent in terms of grade on the test?

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Definitions:

M2

A measure of the money supply that includes cash, checking deposits, and easily convertible near money, such as savings deposits and money market securities.

Corporate Bonds

Corporate bonds are debt securities issued by corporations to finance their operations, expansion, and other projects, offering interest payments to holders.

Traveler's Checks

Preprinted, fixed-amount checks designed to allow the person signing it to make an unconditional payment to someone else as a result of having paid for that privilege.

Saving Deposits

Accounts held at financial institutions that pay interest but typically have restrictions on withdrawals.