A detergent company periodically tests its products for variations in the fill weight. To do this, the company uses x-bar and R
charts. Eight samples, each containing 10 detergent boxes, were selected from different batches. The data in fill weight (in ounces) of the eight samples is presented below. Sample Sample Mean Sample Range
1 5.8 0.42
2 6.1 0.38
3 16.02 0.08
4 15.95 0.15
5 16.12 0.42
6 6.18 0.23
7 5.87 0.36
8 16.2 0.4
If A2 for the sample size is 0.3080, the lower controllimit for the x-bar chart is___________
