Estimate a suitable sample size that will be will give you 95% confidence that you are 10% of the true mean number of parts in the queue.

Sample 95% Avg. Std. Dev. Half Width 3.80 1.27 3.59* 1.64 0.92 2.93* 2.04 1.14 3.63* Replication Performance Measure 1 2 3 4 5 Total production 5 3 6 2 3 Average waiting time in queue 2.53 1.19 1.03 1.62 0.00 Maximum waiting time in 8.16 3.56 2.97 3.24 0.00 queue Average total time in system 6.44 5.10 4.16 6.71 4.26 Maximum total time in 12.62 6.63 6.27 7.71 4.96 system Time-average number of 0.79 0.18 0.36 0.16 0.05 parts in queue Maximum number of parts in 3 1 2 1 1 queue Drill-press utilization 0.92 0.59 0.90 0.51 0.70 5.33 7.64" 1.19 2.95* 1.48 3.67* 0.31 0.29 0.36 1.60* 0.89* 1.11* 0.72 0.18 0.23 Sample 95% Avg. Std. Dev. Half Width 3.80 1.27 3.59* 1.64 0.92 2.93* 2.04 1.14 3.63* Replication Performance Measure 1 2 3 4 5 Total production 5 3 6 2 3 Average waiting time in queue 2.53 1.19 1.03 1.62 0.00 Maximum waiting time in 8.16 3.56 2.97 3.24 0.00 queue Average total time in system 6.44 5.10 4.16 6.71 4.26 Maximum total time in 12.62 6.63 6.27 7.71 4.96 system Time-average number of 0.79 0.18 0.36 0.16 0.05 parts in queue Maximum number of parts in 3 1 2 1 1 queue Drill-press utilization 0.92 0.59 0.90 0.51 0.70 5.33 7.64" 1.19 2.95* 1.48 3.67* 0.31 0.29 0.36 1.60* 0.89* 1.11* 0.72 0.18 0.23