Following Is a Sample of Five Matched Pairs $\begin{array}{llllll}\hline \text { Sample 1 } & 15 & 21 & 14 & 17 & 24 \\\text { Sample } 2 & 22 & 16 & 20 & 14 & 20 \\\hline\end{array}$

Following is a sample of five matched pairs.
$\begin{array}{llllll}\hline \text { Sample 1 } & 15 & 21 & 14 & 17 & 24 \\\text { Sample } 2 & 22 & 16 & 20 & 14 & 20 \\\hline\end{array}$

Let $\mu _ { 1 }$ and $\mu _ { 2 }$ represent the population means and let $\mu _ { \mathrm { d } } = \mu _ { 1 } - \mu _ { 2 }$ . A test will be made of the hypotheses $H _ { 0 } : \mu _ { \mathrm { d } } = 0$ versus $H _ { 1 } : \mu _ { \mathrm { d } } > 0$ . Compute the test statistic.

A) $- 0.186$
B) $- 0.077$
C) $- 0.034$
D) $- 0.089$