The Following MINITAB Output Presents a Confidence Interval for a Population

question 49

Multiple Choice

The following MINITAB output presents a confidence interval for a population mean.
$\begin{array}{crrrcc}\hline \text { Variable } & \mathrm{N} & \text { Mean } & \text { StDev } & \text { SE Mean } & 99 \% \text { CI } \\x & 30 & 89.4928 & 33.3397 & 6.0870 & (72.693,106.293) \\\hline\end{array}$
Find the critical value $t _ { \alpha / 2 }$ for a $98 \%$ confidence interval.

• A) 2.462
• B) 2.750
• C) 2.760
• D) 2.457