Table 6.2
Observation Number
$$\begin{array} { | c | c | c | c | c | c | }
\hline \begin{array} { c }
\text { Sample } \
\text { Number }
\end{array} & 1 & 2 & 3 & 4 & 5 \
\hline 1 & 10.1 & 10.6 & 9.8 & 9.9 & 10.9 \
2 & 9.7 & 9.5 & 10.3 & 9.9 & 10.5 \
3 & 10.1 & 10.7 & 9.2 & 10.0 & 10.1 \
4 & 9.9 & 9.8 & 10.5 & 10.4 & 10.1 \
5 & 10.4 & 10.1 & 10.9 & 9.9 & 10.3 \
\hline
\end{array}$$
-Using Table 6.2,for the $\bar { X }$ -chart,what is the value of LCL $\bar { X }$ ?
A) less than or equal to 9.00
B) greater than 9.00 but less than or equal to 9.99
C) greater than 9.99 but less than or equal to 10.99
D) greater than 10.99

Question

Table 6.2
Observation Number
 $$\begin{array} { | c | c | c | c | c | c | } 
\hline \begin{array} { c } 
\text { Sample } \
\text { Number }
\end{array} & 1 & 2 & 3 & 4 & 5 \
\hline 1 & 10.1 & 10.6 & 9.8 & 9.9 & 10.9 \
2 & 9.7 & 9.5 & 10.3 & 9.9 & 10.5 \
3 & 10.1 & 10.7 & 9.2 & 10.0 & 10.1 \
4 & 9.9 & 9.8 & 10.5 & 10.4 & 10.1 \
5 & 10.4 & 10.1 & 10.9 & 9.9 & 10.3 \
\hline
\end{array}$$
-Using Table 6.2,for the $\bar { X }$ -chart,what is the value of LCL $\bar { X }$ ?
A) less than or equal to 9.00
B) greater than 9.00 but less than or equal to 9.99
C) greater than 9.99 but less than or equal to 10.99
D) greater than 10.99

Quizplus · Accepted Answer

The LCL $\bar { X }$ is greater than 9.00 but less than or equal to 9.99 because the LCL $\bar { X }$ is the mean minus 3 standard deviations, and the mean is 10.00 and the standard deviation is 0.40.

Table 62 Observation Number -Using Table 6 Xˉ\bar { X }Xˉ

Table 62
Observation Number -Using Table 6 $\bar { X }$