HELP. saying this is wrong. please be accurate and read all details.

Webster Chemical Company produces mastics and caulking for the construation industry. The product is blended in large mixers and then pumped into tubes and capped. Management is concerned about whether the filling process for fubes of caulking is in statistical control. The process ahould be centered on 8 ounces per tube. Several samples of eight tubes were taken, each tube was weighed, and the weights in the table below were obtained. Click the icon to view the ounces of caulking per tube data. Click the icon to view the table of factors for calculating three-signa limits for the x-chart and R-chart. a. Assume that only six samples are sufficient and develop the control charts for the mean and the range Set up the R-chart by specifying the center line and three-sigma control limits below. (Enter your responses rounded to threo decimar placess) More Info More Info Factors for calculating three-sigma limits for the x-chart and R-chart