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.

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