The Following MINITAB Output Presents a Confidence Interval for a Proportion

question 5

Multiple Choice

The following MINITAB output presents a confidence interval for a proportion. $$\begin{array} { c r r c c } \hline \text { Variable } & \mathrm { X } & \mathrm { N } & \text { Sample p } & 95 \% \mathrm { CI } \\\mathrm { x } & 78 & 142 & 0.549296 & ( 0.467457,0.631135 ) \\\hline\end{array}$$ Fill in the blanks: We are ________ confident that the population mean is between _______ and _______.

• A) 5%, 0.467457,0.631135
• B) 95%, 0.480610,0.617982
• C) 95%, 0.467457,0.631135
• D) 97.5%, 0.480610,0.617982

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