Exhibit 13-9
in a Regression Analysis Involving 25 Observations, the Following

question 49

Multiple Choice

Exhibit 13-9
In a regression analysis involving 25 observations, the following estimated regression equation was developed.
$\hat { Y }$ =10 - 18X1+3X2+14X3
Also, the following standard errors and the sum of squares were obtained.
Sb₁ = 3 Sb2 = 6 Sb3 = 7
SST = 4,800 SSE = 1,296
-Refer to Exhibit 13-9. The coefficient of X2

• A) is significant
• B) is not significant
• C) can not be tested, because not enough information is provided
• D) None of these alternatives is correct.

---

Definitions:

Data Analysis

The process of systematically applying statistical and logical techniques to describe, summarize, and evaluate data.

Research Design

The framework or strategy planned for a study, outlining how data will be collected, analyzed, and interpreted.

Research Article

A publication presenting original research findings, typically including an abstract, methodology, results, conclusions, and references, subjected to peer review.

Conclusion

The end or final part of something, such as a research paper or argument, summarizing findings or opinions.