The Following MINITAB Output Presents A $95 \%$ Confidence Interval Use the Appropriate Critical Value Along with the Information in \begin{array}{crrcc}
\hline{\text

question 109

Multiple Choice

The following MINITAB output presents a $95 \%$ confidence interval.
$\begin{array}{crrcc}\hline{\text { The assumed sigma }=9.9860} & \\\text { Variable } & \mathrm{N} & \text { Mean } & \text { SE Mean } & 95 \% \mathrm{CI} \\\mathrm{x} & 37 & 31.799 & 1.6417 & (28.581,35.017) \\\hline\end{array}$

Use the appropriate critical value along with the information in the computer output to construct a $99 \%$ confidence interval.

• A) (30.461, 33.137)
• B) (28.581, 35.017)
• C) (27.980, 35.618)
• D) (27.570, 36.028)

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