What is the UCL? LCL? Center? Which ones are out of control

A quality inspector took six samples, each with twenty observations, of the weight of a bagging process, in pounds. The sample means and ranges are shown below. Sample Mean Range 3.55 0.55 3.80 0.75 3.50 0.55 3.60 0.51 3.50 0.55 3.55 0.65 1 2 WN 3 456 6 Use this information to obtain a three-sigma X-bar control chart for the mean weight. Use that control chart to answer the questions below. Do not round intermediate calculations. Round your final answers to three decimal points. Question What is the upper control limit?