Exhibit 12-9
a Regression and Correlation Analysis Resulted in the Following

question 83

Multiple Choice

Exhibit 12-9
A regression and correlation analysis resulted in the following information regarding a dependent variable y) and an independent variable x) .
$\begin{array}{ll}\Sigma \mathrm{X}=90 & \Sigma \mathrm{Y}-{\bar{\mathrm{Y}}) X}-\bar{X}) =466 \\\Sigma \mathrm{Y}=170 & \Sigma \mathrm{Y}-\overline{\mathrm{Y}}) ^{2}=1434 \\\mathrm{n}=10\\\mathrm{SSE}=505.98 & \Sigma \mathrm{X}-\bar{X}) ^{2}=234 \end{array}$

-Refer to Exhibit 12-9. The coefficient of determination equals

• A) 0.6472
• B) -0.6472
• C) 0
• D) 1

---

Definitions:

Hispanic Populations

Groups of people or communities that identify with or are derived from Spanish-speaking countries, especially those within Latin America.

Noxious Substance

A toxic or harmful substance that can cause damage to living organisms through inhalation, ingestion, or skin absorption.

Chemical Plant

A chemical plant is a facility where chemical processes are carried out to produce chemicals and other products on a large scale.

Correlation

A metric that quantifies the degree to which two variables move in relation to each other, demonstrating the intensity and orientation of their linkage.