An e-commerce website has received some complaints on shipping errors. Managers ask the shipping and handling department to monitor the shipping process and make sure of the quality in their process. To monitor the process, for 10 consecutive weeks, they look into the first 100 shipments and count the number of shipping errors as shown in table below: 1) What's the average fraction of shipping errors per week? (Round your answer to three decimal places.) 2) What's the upper control limit (UCL) for the fraction of shipping errors per week using two-sigma limts? (Round your answer to three decimal places.) 3) Is the shipping process in control? (Enter your answer as "Yes" or "No".)