A First-Order Model Was Used in a Regression Analysis Involving $x _ { 1 }$

question 11

Essay

A first-order model was used in a regression analysis involving 25 observations to study the relationship between a dependent variable y and three independent variables, $x _ { 1 }$ , $x _ { 2 }$ and $X _ { 3 }$ . The analysis showed that the mean squares for regression is 160 and the sum of squares for error is 1050. In addition, the following is a partial computer printout. $$\begin{array} { | c | c c | } \hline \text { Predictor } & \text { Coef } & \text { StDev } \\\hline \text { Constant } & 25 & 4 \\x _ { 1 } & 18 & 6 \\x _ { 2 } & - 12 & 4.8 \\x _ { 3 } & 6 & 5 \\\hline\end{array}$$ Is there enough evidence at the 5% significance level to conclude that the model is useful in predicting the value of y?

---

Definitions:

Pillar

A fundamental component or structure that supports and adds strength or stability to a system, organization, or theory.

Social Media Optimization

The process of using social media networks to manage and grow an organization’s message and online presence.

Cultural Co-Creation

A process where individuals or groups from different cultural backgrounds collaborate to produce shared meanings, values, or artifacts.

Linkbaiting

A content creation strategy aimed at generating inbound links by creating highly engaging, compelling, or controversial material.