The Following Output from MINITAB Presents a Confidence Interval for the Mean

question 19

Multiple Choice

The following output from MINITAB presents a confidence interval for the mean difference between matched pairs
$\begin{array} { r r r r r } & \mathrm { N } & \text { Mean } & \text { StDev } & \text { SEMean } \\\text { Difference } & 20 & 8.7658 & 2.1867 & 0.488961\end{array}$
95 % CI for mean difference: (7.74239,9.78921)
Fill in the blanks: We are 95% confident that the mean difference is between ______ and ----------.

• A) 6.5791,10.9525
• B) 0,8.7658
• C) 7.74239,9.78921
• D) 0.488961,2.1867