The Paired Data Below Consists of Test Scores and Hours $\hat{\mathrm { y }} = 44.8447 + 3.52427 \mathrm { x }$

Multiple Choice

The paired data below consists of test scores and hours of preparation for 5 randomly selected students. The equation of the regression line is $\hat{\mathrm { y }} = 44.8447 + 3.52427 \mathrm { x }$ . Find the standard error of estimate.
$\begin{array}{c|rrrrr}\text { x Hours of preparation } & 5 & 2 & 9 & 6 & 10 \\\hline y \text { Test score } & 64 & 48 & 72 & 73 & 80\end{array}$

A) $7.1720$
B) $13.060$
C) $4.1097$
D) $5.3999$