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

question 34

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. $$\begin{array} { | c | c c | } \hline \text { Predictor } & \text { Coef } & \text { StDev } \\\hline \text { Constant } & 25 & 4 \\x _ { 1 } & 18 & 6 \\x _ { 2 } & - 12 & 4.8 \\x _ { 3 } & 6 & 5 \\\hline\end{array}$$ Test at the 5% significance level to determine whether $x _ { 1 }$ is linearly related to y.

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Definitions:

Lewin's Basic Change Model

A model of change management proposing three steps: unfreezing, changing, and refreezing, to facilitate and solidify change within an organization.

Status Quo

The existing state or condition of affairs, often used in the context of maintaining current systems or resisting change.

Refreezing

The final stage in Lewin's change model where new behaviors are solidified into the culture after a change has been implemented.

Lewin's Basic Change Model

A three-step theory of change that includes unfreezing, changing, and refreezing to facilitate and manage the process of change within organizations.