TABLE 13-6
the Following EXCEL Tables Are Obtained When "Score

question 127

Multiple Choice

TABLE 13-6
The following EXCEL tables are obtained when "Score received on an exam (measured in percentage points) " (Y) is regressed on "percentage attendance" (X) for 22 students in a Statistics for Business and Economics course.
$\begin{array}{ll}\hline \text {Regression Statistics } \\\hline \text { Multiple R} & 0.142620229 \\ \text {R Square} & 0.02034053 \\ \text {Adjusted R Square} & -0.028642444 \\ \text {Standard Error} & 20.25979924 \\ \text {Observations} & 22 \\\hline\end{array}$

$\begin{array}{lcrrc} & \text { Coefficients } & \text { Standard Enor } & {\text { T Stat }} & p \text {-value } \\\hline \text { Intercept } & 39.39027309 & 37.24347659 & 1.057642216 & 0.302826622 \\\text { Attendance } & 0.340583573 & 0.52852452 & 0.644404489 & 0.526635689 \\\hline\end{array}$

-Referring to Table 13-6, which of the following statements is true?

• A) 2% of the total variability in percentage attendance can be explained by score received.
• B) -2.86% of the total variability in percentage attendance can be explained by score received.
• C) -2.86% of the total variability in score received can be explained by percentage attendance.
• D) 2% of the total variability in score received can be explained by percentage attendance.

---

Definitions:

Equilibrium Outcome

The situation in which market supply and demand balance each other, and, as a result, prices become stable.

Pure Strategies

A strategy in game theory where a player chooses a single action or outcome consistently, rather than mixing between multiple options.

CD Changer

An electronic device that stores and plays multiple compact discs automatically, allowing users to switch between discs without manual intervention.

Nash Equilibrium

Set of strategies or actions in which each firm does the best it can given its competitors’ actions.