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Question $9$, Instructor-$\newline$created question$\newline$points$\newline$Points: $0$ of $1$$\newline$Save$\newline$Assume that the paired data came from a population that is normally distributed. Using a $0$.$05$ significance level and $d=x-y$, find $\bar{d}$, and $s_{d}$.$\newline$\begin{tabular}{lcccccccc}$\newline$$\mathrm{x}$ & $13$ & $10$ & $18$ & $13$ & $8$ & $9$ & $3$ & $8$ \\$\newline$$\mathrm{y}$ & $11$ & $8$ & $13$ & $8$ & $8$ & $13$ & $5$ & $5$$\newline$\end{tabular}$\newline$$\bar{d}=0.875$ (Round to three decimal places as needed.)$\newline$$s_{d}=0.2$ (Round to three decimal places as needed.)