A machine that is supposed to produce ball bearings with a diameter of 7 mm yields the following data from a test of 5 ball bearings every 20 minutes. $\begin{array}{l|lllll|l|l}
S&&&A&&&M&R\\hline
1 & 6.3 & 6.8 & 6.9 & 6.8 & 6.9&6 .74 & 0.6 \
2 & 6.3 & 6.6 & 6.6 & 6.3 & 7.0&6 .56 & 0.7 \
3 & 6.8 & 6.7 & 7.0 & 6.5 & 7.0 & 6.8 & 0.5 \
4 & 7.0 & 6.7 & 6.7 & 6.8 & 6.8 & 6.8 & 0.3\
5 & 6.8 & 6.8 & 6.6 & 6.5 & 6.4&6 .62 & 0.4 \
6 & 6.8 & 6.7 & 6.6 & 6.3 & 6.9&6 .66 & 0.6 \
7 & 7.3 & 7.3 & 7.4 & 7.4 & 7.0&7 .28 & 0.4 \
8 & 7.2 & 7.0 & 7.2 & 6.9 & 7.1&7 .08&0 .3\
9 & 7.3 & 7.6 & 7.1 & 7.4 & 7.6 & 7.4 & 0.5 \
10 & 7.2 & 7.6 & 7.5 & 7.6 & 7.1 & 7.4 & 0.5 \
11 & 7.2 & 7.2 & 7.4 & 7.0 & 7.0&7 .16 & 0.4 \
12 & 7.5 & 7.4 & 7.4 & 7.6 & 7.1 & 7.4 & 0.5\
\end{array}$

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The Answer of A machine that is supposed to produce ball bearings with a diameter of 7 mm yields the following data from a test of 5 ball bearings every 20 minutes. $\begin{array}{l|lllll|l|l}
S&&&A&&&M&R\\hline
1 & 6.3 & 6.8 & 6.9 & 6.8 & 6.9&6 .74 & 0.6 \
2 & 6.3 & 6.6 & 6.6 & 6.3 & 7.0&6 .56 & 0.7 \
3 & 6.8 & 6.7 & 7.0 & 6.5 & 7.0 & 6.8 & 0.5 \
4 & 7.0 & 6.7 & 6.7 & 6.8 & 6.8 & 6.8 & 0.3\
5 & 6.8 & 6.8 & 6.6 & 6.5 & 6.4&6 .62 & 0.4 \
6 & 6.8 & 6.7 & 6.6 & 6.3 & 6.9&6 .66 & 0.6 \
7 & 7.3 & 7.3 & 7.4 & 7.4 & 7.0&7 .28 & 0.4 \
8 & 7.2 & 7.0 & 7.2 & 6.9 & 7.1&7 .08&0 .3\
9 & 7.3 & 7.6 & 7.1 & 7.4 & 7.6 & 7.4 & 0.5 \
10 & 7.2 & 7.6 & 7.5 & 7.6 & 7.1 & 7.4 & 0.5 \
11 & 7.2 & 7.2 & 7.4 & 7.0 & 7.0&7 .16 & 0.4 \
12 & 7.5 & 7.4 & 7.4 & 7.6 & 7.1 & 7.4 & 0.5\
\end{array}$

A Machine That Is Supposed to Produce Ball Bearings with a Diameter