The customer service manager for the XYZ Fastener Manufacturing Company examined 60 vouchers and found 9 vouchers containing errors.Find a 98 percent confidence interval for the proportion of vouchers with errors.
A) $[ .147 \quad .153 ]$
B) $[ .080 \quad .220 ]$
C) $\left[ \begin{array} { l l }
.043 & .257
\end{array} \right]$
D) $\left[ \begin{array} { l l }
.112 & .188
\end{array} \right]$

Question

The customer service manager for the XYZ Fastener Manufacturing Company examined 60 vouchers and found 9 vouchers containing errors.Find a 98 percent confidence interval for the proportion of vouchers with errors.
A) $[ .147 \quad .153 ]$
B) $[ .080 \quad .220 ]$
C) $\left[ \begin{array} { l l } 
.043 & .257
\end{array} \right]$
D) $\left[ \begin{array} { l l } 
.112 & .188
\end{array} \right]$

Quizplus · Accepted Answer

The Answer of The customer service manager for the XYZ Fastener Manufacturing Company examined 60 vouchers and found 9 vouchers containing errors.Find a 98 percent confidence interval for the proportion of vouchers with errors.
A) $[ .147 \quad .153 ]$
B) $[ .080 \quad .220 ]$
C) $\left[ \begin{array} { l l } 
.043 & .257
\end{array} \right]$
D) $\left[ \begin{array} { l l } 
.112 & .188
\end{array} \right]$

The Customer Service Manager for the XYZ Fastener Manufacturing Company [.147.153][ .147 \quad .153 ][.147.153]

The Customer Service Manager for the XYZ Fastener Manufacturing Company $[ .147 \quad .153 ]$