Following Is a Sample of Five Matched Pairs $\begin{array}{llllll}\hline \text { Sample 1 } & 23 & 26 & 18 & 32 & 28 \\\text { Sample 2 } & 19 & 14 & 16 & 12 & 14 \\\hline\end{array}$

Multiple Choice

Following is a sample of five matched pairs.
$\begin{array}{llllll}\hline \text { Sample 1 } & 23 & 26 & 18 & 32 & 28 \\\text { Sample 2 } & 19 & 14 & 16 & 12 & 14 \\\hline\end{array}$

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) 4.651
B) 1.405
C) 8.547
D) 3.141