Assume That You Want to Test the Claim That the Paired

Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is $\mu _ { d } = 0$ Compute the value of the t test statistic. Round intermediate calculations to four decimal places as needed and final answers to three decimal places as needed.
$\begin{array} { l | c c c c c c c c c } \text { Subject } & \text { A } & \text { B } & \text { C } & \text { D } & \text { E } & \text { F } & \text { G } & \text { H } & \text { I } \\\hline \text { Before } & 168 & 180 & 157 & 132 & 202 & 124 & 190 & 210 & 171 \\\hline \text { After } & 162 & 178 & 145 & 125 & 171 & 126 & 180 & 195 & 163\end{array}$

A) 9.468
B) 3.156
C) 0.351
D) 1.052