Exhibit 10-5
the Following Information Was Obtained from Matched Samples

Exhibit 10-5
The following information was obtained from matched samples.
$\begin{array}{ccc}\text { Individual }&\text { Method } 1&\text { Method } 2\\1 & 7 & 5 \\2 & 5 & 9 \\3 & 6 & 8 \\4 & 7 & 7 \\5 & 5 & 6\end{array}$
-Refer to Exhibit 10-5. The null hypothesis tested is H0: ?d = 0. The test statistic for the difference between the two population means is

A) 2
B) 0
C) -1
D) -2