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\begin{array}{|c|c|c|c|c|c|c|c|}\hline \text { Sample } & \text { Mean } & \text { Sample } & \text { Mean } & \text { Sample } & \text { Mean } & \text { Sample } & \text { Mean } \\\hline 152,152 & 152 & 156,152 & 154 & 160,152 & 156 & 164,152 & 158 \\\hline 152,156 & 154 & 156,156 & 156 & 160,156 & 158 & 164,156 & 160 \\\hline 152,160 & 156 & 156,160 & 158 & 160,160 & 160 & 164,160 & 162 \\\hline 152,164 & 158 & 156,164 & 160 & 160,164 & 162 & 164,164 & 164 \\\hline\end{array}