Assume that you want to test the claim that the paired sample data come from a population for which the mean difference
is $\mu _ { \mathrm { d } } = 0$ 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.
-$\begin{array}{|l|llllllll}
\mathrm{x} & 28 & 31 & 20 & 25 & 28 & 27 & 33 & 35 \
\hline \mathrm{y} & 26 & 27 & 26 & 25 & 29 & 32 & 33 & 34
\end{array}$

A) $t = - 1.480$
B) $t = 0.690$
C) $t = - 0.185$
D) $t = - 0.523$

Question

Assume that you want to test the claim that the paired sample data come from a population for which the mean difference
is $\mu _ { \mathrm { d } } = 0$ 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.
-$\begin{array}{|l|llllllll}
\mathrm{x} & 28 & 31 & 20 & 25 & 28 & 27 & 33 & 35 \
\hline \mathrm{y} & 26 & 27 & 26 & 25 & 29 & 32 & 33 & 34
\end{array}$

A) $t = - 1.480$
B) $t = 0.690$
C) $t = - 0.185$
D) $t = - 0.523$

Quizplus · Accepted Answer

The t test statistic is calculated using the differences between paired samples. The differences are: 2, 4, -6, 0, -1, -5, 0, 1. The mean difference is -0.625, the standard deviation of differences is 3.6742, and the sample size is 8. The t statistic is calculated as $(-0.625 - 0) / (3.6742/\sqrt{8}) = -0.523$.

Assume That You Want to Test the Claim That the Paired