3 part question

Question 3 0.3pts The upper control limit for the R-chart (i.e., UCLR ) is: (your answer should be recorded to two decimal places) Question 4 0.3pts The lower control limit for the x-bar chart (i.e., LCLX ) is: (your answer should be recorded to two decimal places) \begin{tabular}{c|c|c|c|c|c|c|c} \hline & \multicolumn{7}{|c}{ Tube Number } \\ \hline Sample & 1 & 2 & 3 & 4 & 5 & 6 & \\ \hline 1 & 7.98 & 8.34 & 8.02 & 7.94 & 8.44 & 7.68 & 7 \\ \hline 2 & 8.23 & 8.12 & 7.98 & 8.41 & 8.31 & 8.18 & 7 \\ \hline 3 & 7.89 & 7.77 & 7.91 & 8.04 & 8.00 & 7.89 & 7 \\ \hline 4 & 8.24 & 8.18 & 7.83 & 8.05 & 7.90 & 8.16 & 7 \\ \hline 5 & 7.87 & 8.13 & 7.92 & 7.99 & 8.10 & 7.81 & 8 \\ \hline 6 & 8.13 & 8.14 & 8.11 & 8.13 & 8.14 & 8.12 & 8 \\ \hline \end{tabular} Use the below description for the next THREE questions: Webster Chemical Company produces mastics and caulking for the construction industry. The product is blended in large mixers and then pumped into tubes and then capped. Webster is concerned whether the filling process for tubes of caulking is in statistical control. The process should be centered on 8 ounces per tube. Several samples of eight tubes are taken and each tube is weighed in ounces. Based on the x-bar chart and R-chart is the process in statistical control? Justify your answer with a discussion about whether the process spread, process average, or both are in a state of control, and why (or why not)